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Topic: advice on using a 20 grams pf with my Oscar (3 msgs / 95 lines)
1) From: =?iso-8859-1?Q?Claus_Th=F8gersen?=
Hi,
Well the machine in question is not very important, but it is always nice to
brag about the espresso machine you are using.
When I bought the Oscar I also bought a 20 grams filter to use with it. A
few discussions on this list have suggested to grind courser for the 20
grams filter, somewhere in the middle of standard grind and espresso grind,
and try to aim for 4 to 5 ounces.
My first try following this rule have produced somewhere between 3 and 4
ounces, and a very nice espresso like drink, with a fine layer of crema on
top but with a strength more like an Americano than and espresso, and also
with much of the nice texture that is found in a good espresso.
I would however like more vollume, and I am thinking on how to get it. On
tthis first drink I tamp in the same way I do for real espresso, so one idea
could be to tamp lighter?
Are there other uses for a 20 gram filter than this type of drink?
Claus Thøgersen

2) From: DJ Garcia
I don't know about a 20 gm portafilter, I can just about put that much
on my regular portafilter, depending on the bean & grind, but I use a
triple-shot pf with about 23-25 gm (again depending on bean & grind) to
make bigger cappuccinos with about 4 oz extractions.
DJ
Packing off to the Great Wall ...

3) From: David M. Lewis
At 2:49 PM +0100 1/8/05, Claus Thøgersen wrote:
<Snip>
My guess is that you're about optimum for a café crema with that 
machine. Vibe pumps, which is what the Oscar has, fall off in 
pressure fairly quickly with increased flow, and I don't think 
they'll supply anywhere near 9 bar while producing a classic café 
crema, which is a 5-6 ounce drink produced in 17-22 seconds. Of 
course it doesn't cost much to try; just grind a little coarser and 
see if you like the result.
<Snip>
Lots of people use a basket that size for a ristretto. I've had David 
Schomer pull me one that was about 3/4 oz. from a 21-gram basket. You 
could chew it. Good, if perhaps a tad fleeting as an experience.
Best,
	David
-- 
"It is difficult to get a man to understand something when his salary 
depends upon his not understanding it."
	-- Upton Sinclair


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