HomeRoast Digest


Topic: Moisture in puck (4 msgs / 80 lines)
1) From: LOIS & RAY BAKER
This is a multi-part message in MIME format.
I notice Jeff mentiones that if a three way valve is on the machine =
there should not be moisture on the top of the puck. My Gaggia has a =
three way valve and frequently has noticable water remaining. Is this =
more commonly to be tamping too hard or the grind or can it be the bean =
having been roasted to say only the 1st crack?.Three questions in =
one.New to the list and coffee as a hobby.
Ray.
 

2) From: Jeffrey A. Bertoia
LOIS & RAY BAKER wrote:
<Snip>
It can be either of the above.  One thing that drove me to fits was an
uneven grind.  It can be caused by a dirty grinder, inadequate grinder
or worn burrs.
Another possibility is a plugged on non operative three way valve.
<Snip>
Nope.  I regularly roast between city and full city and have never
seen that problem due to roast.
<Snip>
Well I hope I began to answer them.  I'm sure that you'll get more 
responses in the morning.
Welcome to the list!
jeff
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3) From: Irene and Lubos Palounek
"I notice Jeff mentions that if a three way valve is on the machine there
should not be moisture on the top of the puck. My Gaggia has a three way
valve and frequently has noticeable water remaining.
Ray and Jeff, I think that not only the machine must have the three way
valve, but you must also use it.  Without releasing the pressure, there will
be plenty of moisture on the puck.
I think that others have answered your question and I do not have much to
add. "Noticeable water" is perhaps OK or to be expected.  I do not know.
And, frankly, I am not sure why I should care -- if the coffee tastes good.
Perhaps I am wrong.
Is there a hydraulic engineer on this list?  He or she might have some
additional insight.
Cheers, Lubos
So much to learn -- so little time.
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4) From: Mike McGinness
From: "Irene and Lubos Palounek" 
 Ray and Jeff, I think that not only the machine must have the three
way
<Snip>
will
<Snip>
I can't speak for all 3 way valve espresso machines but on Miss Silvia it's
automatic. As soon as you stop the pull the pressure to the portafilter is
released instantly released with the water being diverted internally to the
drip tray. It was one of the factors important in my buying decision. No
danger of taking off the portafilter to soon and spraying all over when
doing back to back shots...
MM;-)
Home Ju-Ju Variable Variac Rockin' Rosto Roasting in Vancouver, WA USA
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