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What are, roughly, the effects of too high or too low brewing pressure ? - Page 2

Postby HB on Sat Sep 10, 2011 8:50 am

Ton wrote:Am I right then when I assume that with the current setting (9 bar on the manometer portafilter), I am somewhere in the ballpark ?

Yes, undoubtedly.
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Postby cafeIKE on Sat Sep 10, 2011 9:41 pm

Ton wrote:Am I right then when I assume that with the current setting (9 bar on the manometer portafilter), and of course taking in account possible inaccuracy, I am somewhere in the ballpark ?

The home grown gauge could be no more accurate than the one in the machine. It could be -1 and the machine could be +1. If the measurements are static without a flow through PF, probably both gauges are inaccurate.
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Postby petrush on Sun Sep 11, 2011 1:54 am

If both tests are done using a blind filter and a equilibrium pressure is reached, then there should be same pressure at both points, the difference in mentioned in the faq is between static and actual extraction.

Sounds like there is a difference in the gauges.
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