HomeRoast Digest


Topic: How long does your 'crema' last? (2 msgs / 69 lines)
1) From: Rbt Tut
Some backgroud:
Ive been experimenting with my iRoast2 following Tom's guidelines for
various espresso blends.
I have the digital thermometer on order and it will get here in a few days.
basted on the pictures of roast Id say I roast to about Full City.  although
on the SM page this suggests a temp of 444 f.
the iroast indicator is about 380 - 385, just a minute into stage III
the current blend is:
50% Brazil dry processed Cerrado
25% Ethiopian Sindamo
25% Sumatra Handheling
this is one of T&M suggestions.
my version has an intense red-brown color, very nice crema and an intense
 'bite'
things like 'brightness' etc don't mean much to me yet.
However, this blend has a very short 1/2 life for the crema.
why is that?  all the other characteristics are really excellent, especially
the color.
thanks!
RHT
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2) From: Derek Bradford
Does it taste good?  Crema is important, but taste is more important.  If
the crema dissipates quickly, but the shot still tastes good, then things
are probably fine.  There are many factors that affect crema: length of
rest, components (or origin, in the case of single origins), brewing
equipment, and cleanliness are just a few.
I'd expect a fair amount of crema from the Brazil in the blend, though not a
crazy amount from the other two.  Overall, I'd expect a good layer of crema
if I were brewing it on a manual lever machine or a good pump machine.  On
my spring-assist lever, I get fairly thin crema overall, but the shots are
still quite good.  In my case, it's a function of the spring; there just
isn't the same shot pressure as other machines.  On my Europiccola, crema
persists much longer than the shot ever lasts, certainly a couple/three
minutes, and it's thick and abundant.  On my current machine, after a minute
there are holes in the surface to the coffee below.
What are you grinding and brewing with, and how long have you let the coffee
rest?
--Derek
On Sun, Dec 21, 2008 at 11:15 AM, Rbt Tut  wrote:
<Snip>
-- 
Every path but your own is the path of fate.  --Thoreau
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