www.espressoparts.com: espresso machines, grinders, brewing equipment & parts

Switched to non-pressurised portafilter... result is non existent crema

Postby rickoshea on Mon Dec 04, 2006 11:39 pm

well .... having started a few weeks ago on my journey to the perfect espresso and struggled my way for a week with an underpowered , underengineered Krups machine I read a few reviews and bought a Solis SL70 which has been performing beautifully ( with the standard pressurised filters ! ) . However , I dont want to cheat and basically want better shots so I ordered the aftermarket filters for the machine . My problem , and its an annoying one , is that when using these non pressurised filters my crema is ..... non existent . I'm using the same grind and same fresh beans ( I do use a bur grinder but cant afford the REAL ones out there ! ) . So ... can anyone help ?!! . I'm desperate to get a decent shot with a nice longgggg crema !! . Thanks all :D .
moved from Ireland to the USA and discovered coffee !
rickoshea
 
Posts: 10
Joined: Dec 04, 2006
Location: Peachtree City , Georgia , USA

Postby another_jim on Mon Dec 04, 2006 11:54 pm

Does the grinder go fine enough so you can get 1.25 to 1.5 ounces in 30 seconds from the double filter? Was the coffee roasted within the last 10 days?

You'll need to answer yes to both questions before real crema is a real possibility.
User avatar
another_jim
 
Posts: 7192
Joined: May 05, 2005
Location: Chicago

Postby DC on Tue Dec 05, 2006 8:52 am

Hi,

another_jim probably solved your problem already.

Just to add my two pennies worth: There are more variables to control with non-pressurised baskets, so a small jump in ability is needed too. I had the same problem when I first switched. I had to grind considerably finer, use a bit more coffee, and tamp harder (the manufacturer's recommendations for my pressurised ones were to use no more than 14g grounds and to tamp lightly with the ill-fitting tamper that came with them). It takes a little while to adjust, but the new baskets will pay off.

Good luck,

DC
User avatar
DC
 
Posts: 117
Joined: Nov 06, 2006
Location: UK

Postby jovial on Tue Dec 05, 2006 9:43 am

DC wrote:I had to grind considerably finer, use a bit more coffee, and tamp harder (the manufacturer's recommendations for my pressurised ones were to use no more than 14g grounds and to tamp lightly with the ill-fitting tamper that came with them). It takes a little while to adjust, but the new baskets will pay off.


There's a clear difference between extracting the best espressos and keeping within the manufacturers recommendations and guidelines,
and extracting the finest espressos possible using the available hardware.

I, personally, have sent my filter baskets for depressurization... took me a while to decide on it.. considering that it's an irreversible step.
But it doesn't damage my machine and wouldn't lower its life-time by any means....

grinding much finer than recommended, tamping harder, etc puts the machine under much more pressure.... aren't you worried about destructing the machine??
do you think the machine you're using is even designed to work under such conditions?

(just to give you an idea... I looked at my machines instructions leaflet, and saw a note saying "the machine extracts one ounce of espresso in 20 seconds using the ESE pods"...
based on that, i've concluded that it should be able to do so with ground coffee as well... so i'm not that worried about putting the machine and its pump under pressure).
I could be well wrong in here.
jovial
 
Posts: 16
Joined: Nov 06, 2006

Postby DC on Tue Dec 05, 2006 10:26 am

Those were the recommendations for my machine when it had pressurised baskets: these baskets help build up the pressure. Therefore, by altering the baskets, you need to make some significant adjustments to your technique as you'll see if you use your old grind/tamp/dose settings when your newly de-pressurised baskets arrive.

This is speaking from my own experience with my own machine, but it has only done good for my coffee - it hasn't done any harm at all.

I'll re-emphasise though I was only mentioning this in passing as 'tweaks' I had to perform to get better results with my new baskets. The principal reasons for not getting good crema are those another_jim has already explained.

Hope this helps
DC

P.S. Besides, if it did ruin my machine, at least it'd give me a good excuse to get a better one :twisted:
User avatar
DC
 
Posts: 117
Joined: Nov 06, 2006
Location: UK

Postby rickoshea on Tue Dec 05, 2006 11:04 am

thanks for the replies . I've just pulled 5 shots and my average double shot time for 1-1.5 ozs each is around 23 secs ... a bit fast from what i gather . I can try a finer grind and more tamp pressure and see what works . At present I only get a outside crema ring which does nothing for my aesthetic appreciation of my ( lack of ) skills or my taste buds !!
moved from Ireland to the USA and discovered coffee !
rickoshea
 
Posts: 10
Joined: Dec 04, 2006
Location: Peachtree City , Georgia , USA

Postby mattwells on Wed Dec 06, 2006 1:07 pm

If you have the ability to choke the machine with a fine enough grind (what kind of grinder do you have?) then it is probably your beans. You have to have fresh beans to get good crema.

You want to be consistent in your tamp (30#'s is Schomer's preferred pressure - I think consistency is more important after a point [maybe above 20#'s or so, never really tested it]).

If you are consistent in tamp and are getting in the 25-30 sec range for about 1.5 oz. you are in the ristretto area and (I think) you should have crema unless the beans are old.


If your beans are old, then there is nothing you can do tamp/grinder wise to make crema.

Sad to say that I do not know of any places in the Atlanta area that roast good beans, you are going to have to look to other places (try the sponsors of the forum, they all roast great beans) to get them. Sad but true.

Matt
Matt Wells

LMWDP #160
mattwells
 
Posts: 167
Joined: Mar 08, 2006
Location: Athens, GA

Postby iiifrank on Wed Dec 06, 2006 1:24 pm

Just to echo other comments, fresh beans along with a decent grinder are absolutely critical. I've owned 2 machines that shipped with pressurized portafilters (Starbucks Barista and Solis SL-70) and have made good espresso on both using the non-pressurized portafilters. I just tamped and dosed consistently while changing grinder settings to create the 2oz in 25-30 second pull. Even when using a Starbucks Barista burr grinder (before upgrading to a Rocky) I could get an ok shot with real crema.

Good luck!
User avatar
iiifrank
 
Posts: 15
Joined: Oct 23, 2006

Postby rickoshea on Wed Dec 06, 2006 6:17 pm

confession time .... I have a Cuisinart DBM 8 Burr Grinder , which i set at the finest setting . I know its not a great one and if its essential .. I'll get another ( any advice on the best reasonably priced one I can buy ? ) . It would seem that I'll have to get beans elsewhere than here , I'll look at the sponsors sites :) . My shots ( doubles . are taking about 28 secs for 2 ozs ) have nice crema with the pressurised filters , virtually none with the non pressurised . Its my mission to get good , consistent shots !! .
moved from Ireland to the USA and discovered coffee !
rickoshea
 
Posts: 10
Joined: Dec 04, 2006
Location: Peachtree City , Georgia , USA

Postby another_jim on Wed Dec 06, 2006 6:51 pm

Batdorf and Bronson has their East Coast roasting in Atlanta, check them for good coffee; otherwise, any of the great roasters talked about here -- Intelligentsia, Counter Culture, Paradise, Rocket, Metropolis, Fresco, etc etc

I don't know this grinder. You'll need to check if it's a real burr grinder or a "knob" grinder, pictured here:
http://www.home-barista.com/espresso-guide-stuff.html

My opinion is that the lowest cost acceptable espresso grinder is the Nemox/Quaha Lux, sold at around $160 (same burrs as the Innova illustrated on the linked page); sometimes the Pavoni PGC is also sold for this amount and has a slightly more attractive package. These are loud and messy, but grind superbly. If you want something more civilized, the Rocky or Cunill, which have commercial burrs and motors, are the minimal choices.
User avatar
another_jim
 
Posts: 7192
Joined: May 05, 2005
Location: Chicago

Next

Return to Tips and Techniques