I had a portafilter gauge that indicated that the built in gauge was 2 bar
high, but I had no way to know if either one was correct. So I spent a fair
amount of money buying a larger gauge. I forget what the accuracy
certification was, but it was enough that I thought it would be helpful. If
I recall correctly it was calibrated in PSI and bar. I spent a great deal of
effort and some money finding the fittings that would adapt this gauge to
the threads on the bottom of the portafilter, in a manner that would permit
me to support this rather large and heavy gauge. The result was that the
portafilter gauge I obtained from WLL agreed with my special gauge, so I
concluded they were both correct and the built in gauge was the one that was
wrong.
Allen Worrall
-----Original Message-----
From: Dan Hagelin
Sent: Saturday, April 30, 2011 3:56 PM
To: [email protected]
Subject: Re: Is the brew pressure gauge accurate?
2 bar high; 3 bar low. That's a huge range. Did you guys use a portafilter
pressure gauge to get a better reading? It seems like the built-in gauge is
pretty worthless.
On Apr 30, 2011, at 3:16 PM, Jean-Sebastien Morisset wrote:
On Fri, Apr 29, 2011 at 10:42:42AM -0800, Allen Worrall wrote:
In the archives is some information I submitted maybe 2 years ago. I
established that my pressure gauge read 2 bar high.
Mine was 3 bar low. :-)
js.
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Jean-Sebastien Morisset, Sr. UNIX Administrator <[email protected]>
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