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

#11: Post by HB » September 10th, 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.

#12: Post by **cafeIKE** » September 10th, 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.

#13: Post by **petrush** » September 11th, 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.