The Expobar Office Lever espresso machine I purchased mentions your ready to brew when the indicator reads 1 Bar to 1.5 Bars.
My local Brista tells me that 9 Bars of preasure are required for propper espresso extraction.
Is 1 Bar of preasure on this machine's indicator actually equal to 9 Bars of preasure? Is this a misprint in the spec's page on this site for the machine?
I'm rather confused.
The pressure gauge on the machine is an indicator of the boiler pressure (directly correlated to temperature). That gauge will generally read from .9-1.5 bar of pressure during normal operation. The pressure that the pump produces for brewing should be between 8-9 bars of pressure, like your barista told you. These are simply 2 different types of pressure being mentioned. 11-01-13 05:40PM
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