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Getting to know the Gaggia Factory

Postby ntwkgestapo on Thu Dec 20, 2007 12:19 am

Earlier today, Dan (Mr. HB!) suggested that I might like to document my journey of exploration into the world of Manual Lever Espresso machines (i.e. the Gaggia Factory) and I said "Might just do that!". Well, might as well get started!

It arrived from WLL this evening about 7:30. Came packed in a fairly large box with enough styrofoam peanuts to choke an elephant. Inside that was yet another corrugated cardboard box and inside THAT was the "retail" box for the Gaggia Factory 16 Cup that I'd ordered. I'm a LITTLE disappointed as the corrugated box had been opened and resealed (tape over the flaps, about half of the staples that were put in @ the factory were missing and the ones that WERE there weren't fastened). When I opened the retail box, the power cord wasn't "restrained" in any way (no twist ties, no tape.... Asia has a tendency to use wire twist ties, Europe usually coils the cord and tapes the coil at a single point. Just what I've observed over the years), the double filter basket was loose in the styrofoam packing, and the rest of the parts were inside a plastic bag folded over a few times and stapled to seal. Had I purchased a "buyers remorse" system it would have been one thing, but I purchased a NEW system (and the invoice says that)...

BUT, I went ahead and unpacked and assembled. Filled the boiler with water (with a bit of baking soda) turned it on and let it build pressure. At about .9 bar it began cycling, down to about .65 then up to .9. Looked good. I purged the water out thru the P/F, turned it off, bled the pressure off via the steam wand and emptied the boiler once it was safe. Refilled with clean, filtered water and repeated the purge cycle (twice. Refilled the boiler one more time and purged, JUST to make sure).

Now I had planned on just "playing" with the system. Put a thermocouple up the P/F spouts and see what kind of temps I could get as well as see how the temps climbed over time..... Well, "the best laid plans o' mice and men, gang aft aglay" (don't kill me on the spelling, haven't seen the original in about 40 years! :D). Instead, I ground some coffee using the Starbucks Barista grinder I've got, loaded the filterbasket up, tamped and tried to take a shot! A bit fast, not the darkest crema I've ever seen and somewhat bitter... OK, tighten the grind up and try again. Better! Still bitter, crema is better but not great and she still pulled fast, BUT, not as bitter and it actually made a fairly decent cappa! UNFORTUNATELY, this is as tight as the Barista/Solis grinder goes!

In the morning I'm gonna break out the hand grinder and see what I can do with it!

There will be more to come (and I WILL do the T/C up the filter spout and take some measurements!).

Pictures will show up from time to time showing good AND bad!
Steve C.
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Postby jesawdy on Thu Dec 20, 2007 11:07 am

Steve-

Why the baking soda?

I have a Gaggia Factory 16-cup as well (I've had it about a year now I think). It was a WLL eBay Best Offer deal that they surprisingly accepted. It hasn't seen much use but I took it into work last week (after the Quickmill Alexia went on to its new owner :( ). I've gotten much better shots this last week from it than I recall ever getting before. I am using a Cimabli MAX grinder with it, which of course probably helps. Finer grind, 10-15lb tamp, plastic POS tamper. I'm also leaning way into it (placing my shoulder on the lever near the bottom), more so than I ever did before (and maybe a bit too much, I dunno?).

Looking forward to your updates.
Jeff Sawdy
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Postby RapidCoffee on Thu Dec 20, 2007 12:34 pm

jesawdy wrote:Why the baking soda?

The manual recommends this prior to first time use. Presumably the baking soda helps remove lingering manufacturing odors and tastes.

jesawdy wrote:I have a Gaggia Factory 16-cup as well... I've gotten much better shots this last week from it than I recall ever getting before. I am using a Cimabli MAX grinder with it, which of course probably helps. Finer grind, 10-15lb tamp, plastic POS tamper. I'm also leaning way into it (placing my shoulder on the lever near the bottom), more so than I ever did before (and maybe a bit too much, I dunno?).

I'm also enjoying the Gaggia Factory. The extra size and weight of the 16-cup model is a plus when leaning on the lever, even though it takes a couple of minutes longer to heat up. I also prefer more lever pressure in my shots, the resulting taste profile seems more espresso-like.

A decent tamper made a difference for me. The Pavoni POS tamper is too small for the 51mm Millenium models (maybe sized for older 49mm baskets), and the Gaggia POS tamper is too big (55mm). [rant]How hard would it be to supply the correct size tamper?[/rant]

Sigh. Now I suppose you'll want your "real" tamper back... :(
John
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Postby ntwkgestapo on Thu Dec 20, 2007 5:19 pm

Ok, well, as RapidCoffee stated, Gaggia suggests the baking soda (and, what the heck, it sure didn't hurt!)... I did a thorough exam of the machine this morning (looking inside the boiler, took the bottom off to check for possibly loose wires, etc) and do NOT find anything wrong with the machine, so I can only guess that someone MAY have bought it, opened it up and gone "OMG, what the ...." on this and returned it. VERY little water in it (just a few drops), no scratches, no dull spots... A "chip" out of the label (small chip right beside the "factory" on the left side), but, heck, I've owned Italian cars (both inexpensive AND one that, when new was VERY expensive. Today it sells for something like 25-30 times what I paid for it! Sure do wish I still had it.....) and seen worse than this on new items... NOT a problem, I'll just enjoy the learning process!

Tried the hand grinder today and, first time, you betcha, I choked it! Second was better but I loosened it up just a bit toooooo much. Also decided to hit our local roaster (Mill Mountain Coffee & Tea for those who're interested) and pick up some FRESH coffee. Got a Kenyan AA that's 1 day post-roast, nice Full City... (the only way the manager of the shop knew it was 1 day post-roast was "well, the bin was empty yesterday"...).

They've got a good sized old Probat roaster in the back of the store that they use (they got a few of these when they started up and put at least one in each store!)... I've bought from them quite often in the past... whoever is the "roastmaster" seems to know what they're doing as I get good, consistent roasts from them every time (but who ever does the cleanup foobar'd it a couple of months ago... the store in my town had a bit of a fire back in October, if I remember right... They hadn't done a good job of cleaning out the vent hose and it caught fire!).. I'll give the roast another couple of days and then give it a try!

I'm gonna go stick a T/C up the P/F and see what I can learn from that in just a bit! Just finished getting the wife's last Christmas gift (except for a stocking stuffer or two!)...

A few observations....

1) My double P/F filter basket is 51.5mm (haven't measured the single yet).
2) the POS tamper is 39.5mm on the small end and 55.6mm on the big end. Now how's that gonna work! :D
3) P-Stat seems to do a good job of cycling between .65 and .9 bar (per the gauge on it)
4) SURE do wish I'd noticed the shipping on the EPNW tamper. Would have paid to get it faster, but for some reason, I just didn't notice the shipping (that's why I'll get it AFTER Christmas! :() May just have to see if I can find some more scrap 4x4 to turn a 51mm tamper out of!

No 30 (i.e more to come... :))
Steve C.
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Postby jamhat on Thu Dec 20, 2007 9:51 pm

Steve, it's interesting to read your reports about the new Factory. Like you, I bought one after already having another machine and a Baratza grinder. I was disappointed to find that the Baratza (Solis) just doesn't quite fit the bill. It seems that lever machines require a finer grind than other machines. Now, I'm having better luck with an old Trosser hand grinder.

I'm investigating value grinders on the market, and it looks like the Cunill Tranquilo and the Rocky would grind fine enough for our Factories. The Cunill can be bought for about $230. The Rocky for $300.

I also started getting better shots from the Factory after I got a tamper that fit (Thor). Until you get your new tamper, maybe you can use the small side of the plastic one and just carefully tamp all sides of the coffee cake.

I'm glad you are having fun with your new Factory, and I look forward to future reports!

James
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Postby prof_stack on Fri Dec 21, 2007 1:21 am

Before Thor arrived I used a Harley-Davidson shot glass "tamper" that fit the 51mm quite well. The smaller plastic tamper I moved around the basket to pat it down. Thor rules.
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Postby ntwkgestapo on Fri Dec 21, 2007 2:12 am

Right this instant, I'm using the SBux (OLD) 2oz shot glass.... good fit and the espresso is getting better and better (but still a ways to go!).

Did some quick-n-dirty T/C measurements this evening... T/C stuffed up the P/F spout (I'm gonna have to take the double spouts off, just get in the way!)...

From cold machine(switch flipped @ 0 minutes!):

1 ) T/C @ 22c (floating in the air inside the P/F)
2 ) 5 minutes have passed, T/C now @ 38c
3 ) 10 minutes since turn-on, T/C now @ 44c
4 ) 15 minutes since I flipped the switch, T/C now sitting @ 50c

5 ) 3 second flush (lift lever, no filter basket in P/F) 96c tapering to 85c after 20 seconds
6 ) 3 second flush (30 seconds after prev. flush) 98c tapering off to 88c after 20 seconds
7 ) 3 second flush (again 30 sec between flushes) 100c tapering off to 92c (20 seconds later)
8 ) 3 second flush (30 second delay between) 100c tapering off to 94c (20 second delay)
9 ) 3 second flush (30 sec yada, yada, yada...) 100c tapers off to 96c (20 second delay)
10 )... repeat 9
11 )... repeat 9

Now, understand, this is NOT a Fluke (or even an Omega). This was a "Craftsman" Digital Multimeter that I bought to throw into a tool bag a few years ago. Discovered it had a T/C input and purchased a cheap Type K T/C for it (what they spec'd). NOT a calibrated device! Never been inside a cal lab. Indication ONLY!

Of course once you hit 100c you can't go higher (not without something to keep the water under more than 1 atmo of pressure!)... But I found it interesting that the 20 seconds later temp stabilized @ 96c (too darn hot, but...) Oh, and I'm sure someone is going to ask WHY I chose the flush times and delay times I did... No special reason, just picked something I could repeat...


More "testing" to come..

Jamhat, you MIGHT consider the Ascaso I-1,I-2,I-Mini (in the $220-280 range). Stepless adjustment, doser, doserless, flat burrs, conical burrs... I'd thought of getting either an I-2 or an I-Mini just for the wife's Decaf (she just CAN'T have caffeine). Might push that up a bit as I'm not quite ready for the Max grinder as of yet. 1st-line sells them.

EDIT: Forgot to say that the P-Stat is holding the system @ 0.7-0.9 bar NOT the 0.65-0.9 bar I previously stated. Parallax error (I'm 6'1" and the gauge is more than 2 feet below my eye level... misread the gauge!)..

Once again, no 30...
Steve C.
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Postby mcpilot on Fri Dec 21, 2007 9:17 am

I am getting good results with the KitchenAid Burr grinder... I use setting 6....

I like this grinder because there is no angled chute. The grinds fall straight down from the burrs and are "fluffy" They don't clump...
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Postby cai42 on Fri Dec 21, 2007 2:02 pm

Greetings,

Is there any reason I can't put a small amount of silicone sealant around the screw in the drip tray? Wouldn't this solve the problem of water leaking into the base?

Cliff Isackson
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Postby jesawdy on Fri Dec 21, 2007 2:44 pm

cai42 wrote:Is there any reason I can't put a small amount of silicone sealant around the screw in the drip tray? Wouldn't this solve the problem of water leaking into the base?

I don't see why not... that thought has occurred to me as well.
Jeff Sawdy
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