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HB Roadshow - Espresso Tamper Reviews

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Link to "HB Roadshow - Espresso Tamper Reviews"by HB on Sat Jul 15, 2006 9:18 pm

The thread Your favorite tamper, if you could choose only one reminded me how difficult it is to choose a tamper based on online photos or recommendations. The comfort is very dependent on an individual's hand geometry and preferences. Simply put, there's no substitute for the hands on experience. This inspired the...
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Home-Barista.com and espressoparts.com have joined to assemble a kit of beautiful tampers:

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    Cafe Kultur TORR, Bumper, EPNW Clicker, Coffeelab Design

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    EPNW EP5, EspressoCraft, EPNW Lava Import, La Forza
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    Pullman, Reg Barber Radical Pro, Reg Barber HB logo'd, Thor
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    EPNW Compressore, EPNW Lava, EPNW Pro

(click image to enlarge)

Tamper Stats:

Cafe Kultur TORR Classic

Bumper

EPNW Clicker
    handle: black rubber
    handle width: 1 3/4"
    base: stainless steel, satin-brush finish
    overall weight: 1lb 2 3/4oz
    overall height: 4 3/8"
    website: http://www.espressoparts.com

Coffeelab Design
    handle: anodized and powder coated aluminum with rubbger grip
    handle width: 1 1/2"
    base: stainless steel, satin-brush finish
    overall weight: 13 3/8oz
    overall height: 3 5/8"
    website: http://www.coffeelabdesign.com

EPNW Compressore
    handle: powder coated aluminum
    handle width: 1 7/8"
    base: stainless steel
    overall weight: 1lb 1 3/4oz
    overall height: 3 9/16"
    website: http://www.espressoparts.com

EPNW EP5
    handle: polished Bulbinga wood
    handle width: 1 3/4"
    base: stainless steel
    overall weight: 13 oz
    overall height: 3 3/16"
    website: http://www.espressoparts.com

EspressoCraft

EPNW Lava Import
    handle: machine milled aluminum
    handle width: 1 3/4"
    base: stainless steel
    overall weight: 3 1/4"
    overall height: 9 oz
    website: http://www.espressoparts.com

La Forza

EPNW Lava Deluxe
    handle: machine milled aluminum
    handle width: 1 3/4"
    base: stainless steel
    overall weight: 14 1/2oz
    overall height: 3 1/4"
    website: http://www.espressoparts.com

Pullman
    handle: oiled, resin impregnated hardwood
    handle width: 2"
    base: stainless steel with TrueTamp guide rings
    overall weight: 15 oz
    overall height: 3 5/8"
    website: http://www.coffeetamper.com.au

Reg Barber Radical Pro

Reg Barger HB logo'd

Thor
    handle: polished wood
    handle width: 2"
    base: polished wood - Lignum Vitae or Blackwood
    overall weight: 12 3/4oz
    overall height: 3 11/16"
    website: http://www.thortamper.com

EPNW Pro
    handle: machined milled aluminum
    handle width: 1 1/2"
    base: stainless steel
    overall weight: 1lb 3 1/4oz
    overall height: 3 3/8"
    website: http://www.espressoparts.com
Dan Kehn
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Link to "HB Roadshow - Espresso Tamper Reviews"by Psyd on Sun Jul 16, 2006 6:37 pm

Jul 13, '06
Three things motivated my choices for which tampers I'd review. Unique opportunity, direct comparison, and leaving something nice for others. It occurred to me that with fifteen tampers and about as many participants at this point (if not more by the time this gets to you) that some will get reviewed twice, but manners dictates that the first one at the party doesn't take all the prime hors d'oeuvres off the plate at first passing.

Thor Tamper
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Jul 14, '06
I chose the Thor because... well, ya dance with the one that brought ya. I suggested that this one be included because I was intrigued by the 'unorthodox' manufacturing process, and they just looked gorgeous. And the fact that they aren't going to be carried in too many stores, and as a bit of a 'boutique' item, I won't have the opportunity to play with one too often outside the 'Roadshow'. The one that got packaged with the Roadshow is rather plain compared to the wonderful woods displayed on the website, but my guess is that the functionality is going to be the same. It's still a pretty piece. My imagination runs wild with the thoughts that I could have the handles on my Astoria's water and steam spigots, the PF handles, and the knock-box surround made of the same wood as my tamper. Ah, what the heck, it's only money, right?

If you like a big handle to grab onto, and a bit of a wider surface to push down on, this one is for you. I've had a bit of hand surgery here and there (motorcycle injuries and lawnmower incident, don't ask), and the larger diameter feels good to me. The weight is nice, and comparable to, or a bit lighter than, most anything else in the box, and it is balanced more toward the center than most others. Everything else seems to be heavier toward the business end (the piston) and this seems a bit higher up. Not quite the center, but generously higher. I am under the impression that Les is using something to add weight to the tamper, and the placement seems correct for me, if he is.

The tamp is really, uhm, what's the word I'm looking for? Secure? No... Comfortable? Not quite... Confident! The tamper seems to slip into the basket like it's a horse stepping back into its stall after a ride. Something just right about it. That's with the LM double baskets that came with my Silvia years ago, and I kept to use with the Astoria. I'll be trying it with a couple of the baskets that came with the kit, too.

Clicker Tamp
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Jul 15, '06
I also chose the Clicker, because I wanted to compare it directly to the Espro that I own. The height is a bit of an off-putting experience for a coupla seconds, but nothing that I couldn't get used to right away. The Espro felt a little more compact and comfortable in my hand, and feels a bit more like an instrument than a tool, whereas the Clicker has a definite tool-like quality to it. Admittedly, this could be because it has the exact same feel and sound as the punch-down tool I used to connect audio cables and phone cables to patch panels. I took out my old punch-down tool and I'm now considering making my own tamper from it. This is neither a good nor a bad thing, it's a matter of preference.

On the plus side, the Clicker has the feel of repeatability. Once it has reached it's 30 pounds, there is a clearly audible click sound, and an unmistakable mechanical feel that says, clearly, "We're there!" The Espro is a bit more subtle in its response, and quieter. If you weren't to tell someone that you were using an indicator type tamp with the Espro, they'd have to be watching pretty darn close to tell. With the Clicker, you'd have to leave the room to hide it. I also think that the method used to apply the thirty-pounds is a bit less helpful in training to move on to a 'manual' tamp. There is a point at which the spring-loaded internal mating piece between the upper portion (the handle) and the lower portion (the piston) is released, making the clicking sound, and the handle 'falls' a short distance. More of an impact than a tamp at that point. The result is a nicely compact puck, though, and the finish is beautiful. With some of the other tampers I have used, there is a feeling that the polishing turns are smoothing out the final tool marks on a piece, but the EPNW pistons feel absolutely done when you finish the tamp. Those final spins feel more like something turning on bearings than something doing the work of a polisher. Its the same regardless of which handle they are on, too.

I know it sounds like I didn't like the Clicker. That is not the case. I liked it just fine, and it would be an excellent tool for PBTC who aren't going to be around for long enough to warrant spending time training them to a 'T', like holiday help; or for the significant others of Home Baristi who want to make the dream coffee, but don't want to invest the time that we have.

I'm still in the process of picking the third tamper, and I think I'll take a page from Cannonfodder (who's never steered me wrong in the past) and remove the two that I've already used, along with the ones that I've relegated as the 'creme that shall not be bogarted' and just sit and grok what's left. The one that speaks to me goes to work!

Bumper Tamp
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Jul 16, '06
Well, the Bumper flashed by all the Zen meditation I had planned, and the technician in me was overcome with the simple lines, and the rubber grip. And the cool tamp-rest. I discovered early that, for me at least, that cool tamp-rest is just something for me to keep track of. I didn't use it much, and it ended up being the place where I stored the other piston. I discovered that I don't particularly care for the design of the handle, either. While I do love the rubberized grip, (it is comfortable, and confident, no slipping and turns well) my previously mentioned hand surgeries as a child have left me with a preference for a larger and/or more bulbous handle. I thought that my own similarly shaped aluminum tamp was not my favorite because it was a cheap lil thing with a dinged and slightly too small piston. Turns out that I don't much care for that shape. It isn't a large drawback for me, just that I don't have 100% use of all the muscles in the hand and fingers, and larger is easier for me. I use a Belgian grip or an oversized rubberized grip when fencing, and 'Senior' and arthritic grips on my golf clubs, so it would follow that I'd need a larger handle on my tamper.

I discovered another thing that was only tangentially related to the Bumper. I don't particularly care for the tampers with convex pistons. It could be that both the machines that I get to use have flat dispersion screens (or nearly flat), but the curve on this one led to under-dosing. If I dosed normally, the center was fine and the edges would get disturbed when I locked the PF in, and if I dosed to keep the edges lower, the shots would run fast and the puck would, of course, be wet. Not to mention that the crema was light and weak and the espresso was lemony. Oddly, this was the only change any tamper showed in the cup. I had the same result with the Clicker's round base, too, but it was not nearly as pronounced. I could have adjusted grind to make all this work, but I decided that the fewer variables involved, the easier it would be for me to track differences and discrepancies. Maybe the 'American Curve' (?) is the one that I'll be most fond of. But that's another review... Pucks tamped with the flat piston were on a par with any other tamper I used, and the finishing polish was as good as it gets. I again enjoyed that 'riding on bearings' feeling when polishing. The weight was a bit forward on the piston, as the handle is fairly light and the pistons are both pretty big, but not uncomfortably so.

All in all, I was impressed with the Bumper, and fairly drooled at the possibility of having a larger, bulb shaped handle from the same materials. Who knows, maybe I'd find the lil tamper home a permanent place in my kitchen if I owned one. It might be that a few days with this accessory isn't enough to appreciate its value.

Roadshow Baskets

As an aside, I tried some of the baskets that were included with the 'Roadshow' (I was a bit surprised to see them when I opened it) and have decided that it's time for me to order a handful of new baskets for both machines. The triple wasn't used, as I don't have a bottomless (although it only touched three mil before it seated, so I could make a mint making deep triple baskets... ne'ermind...) and the LM double wasn't used as that's what I am using in the Astoria. That left LM ridgeless double basket, and another ridged double basket. The LM ridgeless is my new favorite, as I am fond of removing the basket and cleaning it after every session.

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The other basket was a mystery. I dunno where it came from or why it has the ridge bead rolled into the inside of the basket, but it surprised me with the Clicker. The EPNW base fit in alright, but there is just enough room for one properly ground small piece of ground coffee between the edge of the piston and the outside of the basket on either side. Once you get the piston in, any grounds that aren't under the piston end up between the piston and the basket wall, and almost make a complete seal. Visions of unwarranted purchases danced in my head for a brief moment of caffeinated panic, which was overcome when the piston came out without hand-tools.

There were only four other pistons that would fit in there to do the job, and they were, from best-fit to just-barely; the TORR, the EspressoCraft, the La Forza, and just squeakin' in, the Coffeelab Design.

I still have a couple of days, and will put the three that I've chosen to play with in rotation, and add anything that pops its head up. Please post any questions you'd like me to answer, comments, or criticisms. Keep in mind that the dyslexia and highly caffeinated nature of the research that I'm doing will both contribute to the sprinkling of typos throughout the text!
Chris
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Link to "HB Roadshow - Espresso Tamper Reviews"by HB on Mon Jul 17, 2006 11:08 pm

Thanks Chris for a great opening review, I look forward to your concluding remarks.

In other news, Terry got back from his trip in Italy this week. You can read about it in the expressoparts.com blog (yes, with an "x"). Upon his return, he realized how much time and effort Dave put towards the Roadshow. Needless to say, he showered him with praise on a job well done. Thanks Dave for all your hard work!

After the atttaboys died down, Terry and I discussed some refinements to the Roadshow schedule:
  1. Terry's taken some heat from his pro colleagues for letting the kit "escape" from the West coast. It was a nice try on my part, but I agreed a return trip to regions closer to EPNW's home turf is appropriate. Stay tuned for guest pro reviews coming soon.
  2. The time at each stop will be reduced to an overlap of one weekend and continue in time to make the next participant's location by the following Friday. For most locales, this means shipping out on Tuesday or Wednesday for a Friday delivery.
  3. Enrollment into the Roadshow is suspended until we work through at least half of the current rollcall.
Once the sponsor-requested stops are behind us, I'll work up a "who's next" list. My apologies for the confusion.
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Link to "HB Roadshow - Espresso Tamper Reviews"by Worldman on Tue Jul 18, 2006 12:18 pm

Woo hoo! Does this mean the "show is on the road"? GREAT!

Psyd,
Great reviews and VERY well written. You have set the bar high.

Len
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Link to "HB Roadshow - Espresso Tamper Reviews"by Psyd on Tue Jul 18, 2006 11:11 pm

Jul 17th
OK, so I had a birthday to clean up after, and prepare the grill for even more barbecue, and I wasn't at my house, so there was only one thing to do. Pack up road 'spro kit and take one tamper with me. I'd pretty much done what I had to do with the three that I was going to review, so I decided that I'd experiment with different curvatures while I had them to play with. Choosing a tamper that allowed me to swap different curves on the same handle, I was off. The road kit (mine, as opposed to the 'Roadshow') consists of a Silvia and Rocky, and most everything necessary to fill the needs of a specialty coffee junkie. The request I got for Turkish aside, I just started taking orders. I got a chance to pull shots with each of the different curvatures (flat, Euro-curve, and 'American curve', if memory serves) and just came to the conclusion that I had intuited earlier; curved pistons are for curved dispersion screens, flat pistons are for me. YMMV.

Jul 18th
I was still away from home, but still had the road kit and a volunteer from the 'Roadshow', so I had a couple more chances to test my 'flat tamp' theory. Yup, I still liked it. Just enough espresso to fuel the clean-up of two days of barbecue and revelry, pack up a grill (I'll fetch Miss Silvia and her beau later) and head for home.

Having been 'testing' all week, I was low on beans, and since I really don't have the inclination to roast here at home, I had to stop and pick up more 'Rocket Roaster's Classic'. My Favorite barista told me that they'd just spent the day tuning the machine for the new coffee (they'd recently switched from Vivace) and he suggested that they'd perfected brew temp and pressure. It was really hard to turn down the offer of 'a perfect doppio', but in light of my research, every double-shot I get needs to be under one of the new tampers. "No thanks, I have to drive".

I've pulled a few shots today, and will pull more tomorrow, changing up the tampers with every opportunity, working on the ranking.
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Link to "HB Roadshow - Espresso Tamper Reviews"by Psyd on Sun Jul 23, 2006 5:59 pm

So Wednesday I heard the news, the Home-Barista.com Tamper Roadshow is on to its next stop. I pulled a coupla doubles, and one last parting shot before I handed (yes, handed!) the package off to Mike, the next recipient. I got to enjoy another unique aspect of this circus that most of you will not have an opportunity to relish. I got to see the look in the eyes of a coffee-gear junkie as the lid fell back and revealed the plethora of serious 'spro weaponry, a veritable arsenal of tamp. I've seen less joy on the face of a kid finding a pony 'neath the tree on Christmas morning.


Top Three Picks*

*I chose my three based on something other than, "What three tampers would I like to have, and eliminate the rest of the field?" As I pointed out in the beginning, so the ranking and conclusions here won't mean quite as much as if I had. Although, I must admit, there was a bit of all that happening in the background. These are the three that I was most interested in learning more about, and not necessarily the three top choices were I allowed to simply reach in the bag and take what I wanted. If I were to reach in blind, however, and pick one at random to be mine for ever-and-ever-amen, I wouldn't be disappointed with any of these.

Thor Tamper
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I'd suggest this tamp for anyone who wishes to class up the joint, and has a hearth, or exposed beams in their place. Or natural rock, or a log cabin, or original art hanging on the wall, or wrought... well, they just look nice and feel great. I'm a bit concerned about how long the base (piston?!?) will last, but I'm enough of a woodworker to be able to re-finish it myself every year if need be. I keep wondering about the possibility of a sale price on the thing after the tour, to justify yet another coffee related purchase.

Clicker Tamp
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Great tamper, got me over my fear of taller tampers, and produced great results. As much as I like to tell myself that I'm really good at finding that thirty pound limit that I'm looking for, I find that my Espro (and this Clicker) produce far more reliable shots from Miss Silvia than any of the other tampers I use. While I am sure that there'll be quite a few purists that'll maintain that these are 'training wheels', I've come to love mine. We will all spend mountains of money to get a machine that requires less thinking, watching, doing, flushing, timing, and surfing, but this simple device that insures the same tamp every time (consistency, isn't that what we're looking for?) and reduces yet another variable in the quest get our noses turned up at it. Not me, I'll proudly use mine, and if I'd known about the clicker at the time, I'd have been hard-pressed to have made a choice. If I'd had the opportunity to use both in advance, I'd have taken the taller one, the Clicker.

Bumper Tamper
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There are so many criteria involved, that I would have to build a giant spreadsheet and rate each of the tampers on each criterion and do some sort of root/mean/square algorithm to give them a score that meant anything empirically. As a critic, I fail, because I'd really be happy to give any one of these a spot on my shelf.

That said, this one doesn't fit my hand, so I'd have a hard time rating it high, personally. For those that like that type of tamp, i.e., the flat palm tamper folk, I'd say go for it. It is built well and is far more comfortable and rugged than the aluminium tamper I have of a similar style, and I used that one as a basis of comparison. The base confused me for a bit, and I really didn't think that I'd use it. Today, I found myself thinking that I'd like to have something to tap the PF on lightly (as I'm afraid of tapping the handle of the Espro, and don't like tapping with the pistons) and something to tamp on instead of the counter top (thanks, Dan...). Presently, the top of the doser is the home for tamps at Silvia's house, and at my home the space between the two Mazzers is the home for tampers. I bought the greatest little rotating rubber stamp holder for my tampers, only to discover that the handles are generally too large too use the thing without major changes. Then I realized that I missed the Bumper and its lil rest! I cannot wait till they make one with a different handle! I wonder if they'll sell the bases separately. It'd open up a a huge market of people who want the tamp-rest but either prefer another style of tamper or already have a tamper that they don't want to give up.

All of the pistons that I used on all of the tampers that I reviewed were, at their very worst, really, really good. They all fit nice and tamped well, and made me realize that the tampers that I own are, at their best, merely adequate. Actually, they aren't bad at all, but the suffer from the comparison. Of course, I preferred the flat pistons to all others. I'm not sure if that's because I haven't practiced with a curved piston, or because they are designed for a different type of machine, or because they just aren't as good. Truthfully, I think that they are a bit like handles; they'll do the job no matter what you have, and mostly it comes down to personal preferences.
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Link to "HB Roadshow - Espresso Tamper Reviews"by Psyd on Wed Jul 26, 2006 4:12 pm

Just got another e-mail from Paul Pratt (designer and manufacturer of the Bumper Tamper), and he says that he has quite a bit more product in the works, like pitchers, shot glasses, and the possibility of the tamper rest that comes with the Bumper being available on it's own. Keep an eye out, and there may be a 'handicapped' version of the Bumper out soon!
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Link to "HB Roadshow - Espresso Tamper Reviews"by cannonfodder on Wed Jul 26, 2006 9:04 pm

Nice job.
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Link to "HB Roadshow - Espresso Tamper Reviews"by Barefoot on Wed Aug 02, 2006 1:54 pm

Hey there guys, kyle here from the barefoot crew! It was totally a blast getting to play around with all these tampers, I felt like a kid in a candy store.

My favorite of the tampers was La Forza. A few others on staff noted it was too top-heavy for their tastes, but I have longer fingers than most, and I found it to actually be to my advantage. I found it to have a great feel, like it was molded for my hand, and it simply polished like a dream. I can't say I've ever seen a hand painted, tamper, either.

I mainly use a Reg Barber tamper here at the shop, and the HB one was great too, just like the one I use... However I liked La Forza better. :x (I totally need to snag me one.)

Have a caffeinated day! :D

-Kyle
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Link to "HB Roadshow - Espresso Tamper Reviews"by GonzoGourmand on Wed Aug 02, 2006 6:46 pm

Awesome experience for barista's, customers (home baristas), and roasters (who are looking for a new tamper for their home machine).

Extremely educational. I was surprised at how much I enjoyed using all of the tampers. My favorite hands down was the Thor, but I am very biased as I own a beautiful Thor camphor burl tamper. While my tamper is far more beautiful than the relatively plain maple? tamper in the Roadshow, I was still drawn to it and coveted it very much.

If I could only pick one tamper to own from that set, the Thor would be it. If I had to choose a production piece, it'd be a tough pick. I think I would go with the rather unusually designed CoffeeLab Design tamper, known to Barefoot as the "alien looking" tamper. Fits my hand great, uniquely adjustable height meaning it can be used by many different people, and I really dug the feel of the body. Very ergonomic, but very strange especially after becoming used to my Thor's thick body. The balance in all directions suited me. It seemed very comfortable to me. If I had to recommend one tamper for a shop, or for a home with multiple baristas or one barista who doesn't have access to trying multiple tampers out, I'd choose this one due to it's adjustable height. That is really cool and is a great way to prevent and reduce injuries while improving barista control and thus the quality of the taste of the espresso. Kudos to the designers for incorporating so many different new features. Looks pretty nice and different in my opinion and feels and works great. I didn't realize how much I liked it until it was gone, and it's very rare where I look at a non-Thor tamper without an air of snooty disdain for the "common tamper". I have a new appreciation for metal, plastic, and rubber tampers as I see the potential for innovation and perfection in a mass produced tamper. It is now on the "must have list" after I get just two more Thor tampers

Other surprises for me included the Bumper, which I though I'd hate due to the very simple shape and design, but to my surprise it was fairly comfortable and just worked really well due to the weighting and general design. If I had to pick a tamper for traveling for training or for festivals or for other rough conditions I think I would pick this one because it seems so durable and resistant to scratching, wear, and tear. The tamper rest is also new, different, and ultra cool (gotta get at least one)

La Forza also felt great in my hands. I had low expectations because it was so prettily painted but I sure did like it.

The Reg Barber Radical Pro was way, way, way too tall for me but a former Barefoot Barista, a tall lady with long fingers, loved it a whole lot.

Fantastic experience. I'd recommend all of them depending on one's hands and preference. The best and only way to know which one of these is meant for you is to find the Tamper Roadshow nearest you.

Sincerely,

Paul O'Day
Barefoot Coffee Roasters

(PostScript) While this is my first post, I just want to thank Home-Barista.com for helping spark my interest in espresso and for providing a critical portion of my never ending education on espresso and coffee, as I have been reading this awesome forum for over a year and a half now. Thanks a ton!
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Link to "HB Roadshow - Espresso Tamper Reviews"by mogogear on Thu Aug 03, 2006 4:58 pm

HB,

Maybe I have missed this suggestion / answer, but for the upcoming tamper-testers could we / I guess you( sorry) have a handy matrix or chart to keep tabs on who has tested and what tampers they reviewed? Maybe near the Where's Waldo map. It could also include marks for their favorite ( which might not be the tamper they review. X- axis members- y axis marks for reviews and a asterisk for fave (???) This could keep a lot of accidental pile ups on the same tampers.
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Link to "HB Roadshow - Espresso Tamper Reviews"by Kelpburger on Thu Aug 03, 2006 5:58 pm

Barefoot wrote:My favorite of the tampers was La Forza. A few others on staff noted it was too top-heavy for their tastes, but I have longer fingers than most, and I found it to actually be to my advantage. I found it to have a great feel, like it was molded for my hand, and it simply polished like a dream. I can't say I've ever seen a hand painted, tamper, either.

I mainly use a Reg Barber tamper here at the shop, and the HB one was great too, just like the one I use... However I liked La Forza better. :x (I totally need to snag me one.)

Have a caffeinated day! :D

-Kyle


Barefoot,

I must say I really enjoyed your first HB post. :wink:
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Link to "HB Roadshow - Espresso Tamper Reviews"by HB on Thu Aug 03, 2006 6:50 pm

mogogear wrote:This could keep a lot of accidental pile ups on the same tampers.

Don't worry, this is covered in the participants' instructions ("If an earlier participant writes up one of the tampers you wanted to write about, you must choose two others that have not been reviewed."). The baristas from Barefoot were Terry's invitees and thus had more latitude. Once we get a more reviews completed, I'll work on organizing results, updating the map, etc. We're still working through some logistics issues offline.
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Link to "HB Roadshow - Espresso Tamper Reviews"by mogogear on Thu Aug 03, 2006 7:25 pm

Cool Cool Daddy-O :wink:
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Link to "HB Roadshow - Espresso Tamper Reviews"by HB on Wed Aug 09, 2006 6:07 pm

While I'm not officially on the list of participants slated to review the Roadshow kit tampers, I would like to offer a few comments on my favorites among them. The thread What do you look for in a good tamper? proposes evaluation criteria:
  • Ergonomics, including appropriateness for various hand sizes
  • Availability of different piston sizes and contours
  • Durability / quality of materials and construction
  • Weight and balance
  • Good choice for those who like to tap the portafilter with the tamper
  • Appearance
  • Unique features (e.g., training tampers, tamp level lines)
  • Cost
One could argue that a $15 tamper isn't that much different from a $75 tamper if you only consider its business end - the piston. But I'm swayed by my appreciation of well-designed products and give heavy weight to the tamper's ergonomics. Like a pair of shoes, what feels great to me may not feel as great to you. It's difficult to offer advice to a prospective shopper on what tamper handle will best suit their preference, but the smooth rounded taper of the TORR Classic by Cafe Kultur is appealing both visually and ergonomically:

Image
TORR Classic by Cafe Kultur

The tamper is about one-quarter inch taller than the standard Reg Barber tamper. Although I have small hands, the feel is exceptional, thanks to the smaller knob and slender shaft. It's natural to grasp the tamper like one would grasp a doorknob; the ball nestles nicely in the crease of the palm. When tamping, I keep my wrist straight - again gripping the handle like a doorknob - and elbow at a ninety degree angle, upper arm parallel with the countertop. The downward pressure comes from the weight of my shoulder, not the arm's muscles. The TORR's handle shape encourages this technique; those with large hands may prefer a tamper with a wider or flatter end. I brought the TORR to our Friday get-together and everyone loved the shape, balance, and weight. The only negative comment, except the price, was how the flat-top piston meets the handle at a right angle rather than a slope found on most of the other Roadshow tampers. I agree it's a distinction that may not appeal to all baristas, but it works for me. The flat-top piston is conducive to feeling if the tamp is canted; score lines along the piston's sides like the Pullman would be welcome, although it would compromise the seamless appearance.

The gorgeous woods and exacting craftsmanship of these tampers set them apart from all the others in the Roadshow. Different categories of woods are available separated into price categories; the above is "violet" in class 3 and sells for 69 euro plus shipping from Luneberg, Germany. Below is a swatch of the available woods:

Image
1: Acacia, 2: Bubinga, Palisander, Sonokeling, 3: Violet, Maserbirch, 4: African Blackwood

The exotic woods of the TORR tampers are hard, but if you wish to use it in a commercial environment, the Nero model with solid aluminum handle would be better. I had first heard about TORR a couple years back and admired the website photos. There's currently no US reseller, but luckily Teme mentioned last year that he would be visiting the US and offered to mail one to me during his stay:

Image
TORR Classic in Palisander

The photo above doesn't do it justice; if you're shopping for a gift for a special barista who appreciates fine products, the TORR will not disappoint. The tightly defined wood grain and smoothly polished finish mates nicely with the piston. Notice how the handle joins the piston:

Image
"Soft curve" piston

The piston's raised center has a beveled edge and aligns precisely with the wood handle. You can feel the seam between wood and steel, but barely. It isn't visible from the photos, but the upper portion of the piston is very slightly concave, that is, it raises from the center to the perimeter. The angle is so small that it's imperceptible by sight, but you can feel it. The angle of the piston's sides shown above is different than the first one I acquired last year. At first I thought it was a nod to appearance, but there is a practical benefit: It reduces the amount of coffee grounds that are compressed against the sides when there's a teeny bit of clearance, so they fall off more cleanly (it would be unthinkable to tap the end of a TORR tamper, so I invert the portafilter to dislodge errant grinds before locking in).

As shown above, the piston's face is convex. I don't have instruments to check, but I believe the curvature is slightly more than Reg Barber's American style convex pistons and quite a bit less than his Euro style. Cafe Kultur offers a flat and chamfered piston too (i.e., flat with raised edges). I voted "convex" in the poll Which is better? Tampers with flat or convex bottoms? (*) It's my opinion that a convex piston enhances edge sealing and reduces channeling for some espresso machines, though not all. For example, the extractions of the Elektra A3 was markedly improved using a convex tamper. It's worth trying both styles and deciding if you have a preference.

(*) As an interesting side-note, even David Schomer switched sides from flat-only to slightly convex between his tamping technique articles.
Dan Kehn
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www.prima-coffee.com: coffee & espresso equipment and accessories
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Link to "HB Roadshow - Espresso Tamper Reviews"by cafeIKE on Tue Aug 15, 2006 2:51 am

These comments were written with out reading any of the prior posts to avoid prejudicial information from influencing my experience, so if this is redundant, my apologies. I probably bent the rules a bit, but hey, that's what rules are for. :wink:

It's important to note that these remarks apply ONLY to MY equipment and are as much a comment on my technique as the tamper performance. One cannot discount muscle memory as a large contributing factor in evaluating something as personal as a tamper. For example, I drive 60 miles to have a bowling ball drilled because the same fellow has drilled for me for over 25 years and the ball always fits like a glove. Others can drill with the same numbers, but it just doesn't feel exactly right. To unlearn my old tamper and learn a new tamper, never mind 15, in a few days takes a younger dog than I.

I chose to divide the trials into three parts :
Phase 0 - Just heft all the tampers to see if one called my name. None did.

Phase 1 - Randomly try all the various tampers with a standard grind, dose and tamp [SGDT]. In this phase, I was more interested in the feel of the tamper in the hand than pulling great shots.

Phase 2 - Adjust grind, dose and tamp for tampers I found comfortable in Phase 1 until I could pull consistent shots or gave up trying.

In preparation :
- As I home roast, purchase sufficient commercial roast to remove that variable.
- Clean grinder, Macap M4 doserless, to remove old coffee.
- Clean group, screen and backflush Vibiemme Domobar Super to begin with a clean machine and basket.
- In the interest of time, use a bottomless PF.

My hand size is "medium" and my current tamper is "Stainless Steel Flat with Rosewood Handle, 57.05mm, 370g" The tampers that most closely approximates its shape and feel are the Reg HB and the Bumper.

I use Synesso ridgeless double with about 16g and a 20+ish pound tamp. I grind per shot and as the M4 is doserless, grind into the PF with a yogurt cup funnel and Weiss DT to distribute. I use a stainless spatula to level the grinds in a WENS motion. Depending on the coffee, I may vertically tap the PF once or twice to increase the dose. My tamper is about 1mm small, so I SE/NW gently prior to full pressure tamp in the center. I press on the piston, with almost no pressure at all on the handle. Finish with a light lift off twist to polish. I include this information because if your technique is markedly different, you'll know to read these comments with a large dose of skepticism.

Phase 1 :
At random I selected a tamper and tried it. Whether or not it is a learned response from prior tamper use, I don't know, but a tamper that has the weight concentrated on the piston felt most comfortable. Try as I might, I could not get comfortable with the Thor or the Lava Import. The Thor is too fat for my hand and does not have a definite bearing surface for the thumb and forefinger. The Lava felt too light in the hand and didn't naturally 'orient' itself. None of the rest stood out, but I definitely found I had a preference for a sloped piston top ala Reg HB, Radical Pro, Compressore, Coffee Lab, La Forza and Bumper. Something I found was that I got more channeling using my SGDT with the tampers with the most convex shape, Radical Pro and Lava Import.

While completing Phase 1, I examined the pistons and found 'significant' variation in diameter, shape and bottom edge 'hardness'. When half a turn on the M4 makes a difference in the shot, .6mm MUST be 'significant!' The diameters vary from 57.7 to 58.3 mm and convexity from 0 to 3.1mm.

Tamper Case Layout
[Number at lower left is Diameter, lower right is convexity.]
Image

Another variable is the 'hardness' of the radius of the piston 'corner'. Some are gently rounded and some are almost square. Most sides are vertical but some slope inward slightly.

There are an almost endless number of permutations with the various diameters, flatness, edge hardness and handle shape. As none of the tampers stood out as making a marked improvement in shot quality, I decided that for Phase 2 I would limit the testing to the three that felt most comfortable and had the same diameter and also include two others that varied slightly. The Bumper, Reg HB and Radical Pro are all 58.1mm. The Pullman is probably the 'ideal' diameter for the Synesso basket. As the Pullman and Bumper are both flat, Pullman was number 4. I also included the Clicker as I've always been curious if a mechanical tamp would make for a more consistent shot. It's only 0.2mm smaller than the Reg HB and is similarly convex so could perform similarly to the Reg HB at the trip pressure.

Phase 2:
I started by dialing in the SGDT with my normal tamper.
Once I'd pulled 3 consistent tasty shots in row of ~50mL in ~25s with a trial tamper, I felt confident I could proceed on to the next. If I failed on 4 attempts in a row to make any progress, I would move on regardless. I figured that would give me enough shots per tamper to get in the ball park without burning through all the beans on a complete mismatch, either to my hand or the machine.

Radical Pro:
As I'd failed to make a decent shot with this tamper in Phase 1, I started with this. Yikes! Three of the first four shots covered the front of the machine in coffee. Thinking something possibly amiss with the GDT, I tried my normal tamper and pulled 3 decent shots in a row. Try as I might with this tamper, no combination of GDT gave a great shot. I found the handle comfortable, but I think the narrowness and height didn't mate well with my muscle memory. If I concentrated on orienting the tamper, I got better results.

Reg HB:
This and the Bumper have the closest physical feel to my standard tamper. First shot was a bit thin, so 1 rap of he PF prior to tamp. Bullseye. 3 in a row.

Pullman:
I was quite interested in this tamper as it maybe the ideal size for the Synesso basket. First shot channelled badly, puck was sloppy. -1 turn on the grinder and 3 taps on the knock box was the ticket. About 18g. The handle fit the hand nicely, but the ridge at the piston / handle junction is annoying. If the contour at the base of the handle was curved and the top of the piston sloped, this could have been number one. I definitely liked the engraved lines around the piston. They give an immediate indication of tamp depth and symmetry. Number 2.

Clicker:
Prior to Phase 2, I measured the tamp of this with a scale that holds the maximum pressure applied. I found trip yield is consistenly 30.5 ± 0.5 pounds. I found I could apply ~28± pounds and not trip the tamper. A bit more than my normal tamp, but very consistent. I'd like the trip to be more muted. It's a very sharp snap. My wife came from the other end of the house when I was measuring and asked "What's all that clicking?" The long and the short of it is +2 turns on the grinder plus 4 taps on the knock box using the tamper to just before trip. I gave up trying using the trip as I never got a good shot. This is more than likely due to the 50% increase in tamp pressure over my normal pressure. The handle feels fine, but the extra height over a fixed tamper is a bit off putting, as is the travel. For the first few tamps in Phase 1, I found myself stopping well below the trip point as the travel length was fooling me into thinking I'd gone through the bottom of the basket.

Bumper:
This tamper could also be considered ideal for the Synesso basket. It's almost identical to the Pullman except 0.2mm smaller in diameter. The edge is about a .3mm chamfer on both. Perhaps I was over caffeinated, but I never found the optimum with this tamper. I expected it to be identical to the Pullman, but it was +3 turns on the grinder relative to the Pullman. As a reality check I went back to the SGDT with my standard tamper and pulled 3 in a row, so I obviously had not yet found the sweet spot for this tamper with my gear. It could be the sharpish corner on the handle gives me the false impression of correct pressure vis a vis the more contoured handle of the Reg HB and Pullman. Another variable is the grinder was quite warm by this time, but it did not appreciably affect 3 shots with my standard setup. Number 3.

Bottom Line:
My complete unfamiliarity with convex tampers, which probably require a complete rethink on GDT, prevented me getting a good shot with the Radical Pro. Perhaps the profile is poor match to the VBM. Other than that, I'm certain a few days use of any of the tampers which feel comfortable in the hand would yield a consistent pull. I'm confident that if I'd started with any one of them, I'd be perfectly happy. I do like the feel of the snug basket fit of the Pullman, so perhaps I'll wrap a layer or two of duct tape around my tamper. Recommendations on best color tape for espresso greatly appreciated. :lol:

Favorite:
Reg HB. A classic. Feels good, looks good and I definitely prefer the feel of wood to rubber, plastic or metal. As comfortable as a pair old slippers.
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Link to "HB Roadshow - Espresso Tamper Reviews"by gregpullman on Wed Aug 16, 2006 9:13 pm

Just a point of clarification; Pullman tampers are supplied to whatever size is best for the customer's baskets. 58.3mm is just the size provided for the Roadshow.
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Link to "HB Roadshow - Espresso Tamper Reviews"by luca on Thu Aug 17, 2006 10:01 am

Nice, comprenhensive writeup. Doing that much testing is quite a feat!

cafeIKE wrote:My complete unfamiliarity with convex tampers, which probably require a complete rethink on GDT, prevented me getting a good shot with the Radical Pro.


I'm guessing that the answer to the following question will be "because I'd made so much *&^&^% espresso already." Keeping that in mind, why not just unscrew the La Forza flat base or the RB HB base and try that out on the radical pro? Or did you just plain not like it? (That's OK! In fact, it's the whole point of the roadshow!)

Cheers,

Luca
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Link to "HB Roadshow - Espresso Tamper Reviews"by cafeIKE on Thu Aug 17, 2006 3:30 pm

luca wrote:I'm guessing that the answer to the following question will be "because I'd made so much *&^&^% espresso already." Keeping that in mind, why not just unscrew the La Forza flat base or the RB HB base and try that out on the radical pro? Or did you just plain not like it? (That's OK! In fact, it's the whole point of the roadshow!)


I calculated in Phase 0 that doing a Mix'n'Match on the handles and pistons would yield somewhere around 8000 combinations. I was all for it, but my wife balked at having a semi-trailer parked out front to store the java. :evil:

Seriously, I did pull a few shots with hybrid tampers in Phase 1. I did swap the Reg HB and Rad Pro pistons and handles. Same result, so I'm sure I don't know how to use a very convex tamper. I didn't write up it because it's not one of the tampers in the kit. :wink:

Cheers,
Ian
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Link to "HB Roadshow - Espresso Tamper Reviews"by cannonfodder on Mon Aug 21, 2006 9:33 pm

The box has arrived! I wish I had head warning about it being on its way. Luckily I have a half pound of coffee I roasted Friday, a quarter pound in the Cimbali and a pound that just arrived from Classico Coffee Roasting. That should get me started but I will probably need to roast another pound tomorrow.

It appears that everything arrived as it should be. I got a call from Terry to confirm that I did receive it. I was standing in front of the bar fondling them when he called. I am actually somewhat surprised at the nicks and marks on the collection. Some scratches on the pistons and handles, a couple of larger dents in the wood handles from obvious tamper handle tapping on the portafilter. They are showing signs of use but are by no means beat up.

My initial touch and feel session quickly pointed out which handle shape I favor. The shorter bulbous handles fit my hand geometry best. I use to be a weight lifter so I have pretty short stout fingers and hand. I use to impress kids by crushing two walnuts in one fist.

The TORR is close. I like the piston but the handle is about a quarter inch too long. My fingers float uneasy above the piston and the base of the handle is a tad too thin.
Image

The La Forza handle shape is almost perfect. The handle bulb is a little large but relatively minor. The handle base is the right size. My fingers don't grope for a landing location and the length is just a fraction too long. If the bulb was a bit smaller, I could grip down just a hair more. The wife also likes this one.
Image

EP Compressore, the handle bulb is comfortable but a hair too short. My fingers are squished uncomfortably against the piston top. A quarter inch longer and it would be in the zone.
Image

Espressocraft, my hand is in heaven. The fit is perfect. The bulb is just the right size, the handle base is just the right size, the piston to handle curvature fits my fingers perfectly. I just wish it had a convex base. This handle with this handle to piston geometry with the Torr shaped piston would be perfect in my book.
Image

These are my first impressions and knee jerk reactions. I have pulled shots with the TORR and Espressocraft but only one each. Many more shots and more use of the full kit are in order. I am keeping away from the HB Reg tamper because I have one as well as the Lava tamp again because I have one. One interesting fact, my HB logo Reg has a much smaller HB logo on top. I got one of the first ones released so I am assuming the change was made after the initial production run.
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