Hi guys,
I have a rotary pump machine and the brew group guage on the machine shows a brew group pressure around 9.5 bar.
Once I put a portfilter guage on it, the pressure just rose and rose to 10.5 bar.
I have turned the pressure down, but now I get poor crema.
All the searching on the web tells me that static presure is different to dynamic presure readings.........Is this true, and which guage should I believe?
Should I just rely on the guage on my machine and be done with it?
Can there be that much difference between the two readings?
Any advice welcome.
Cheers
I have a rotary pump machine and the brew group guage on the machine shows a brew group pressure around 9.5 bar.
Once I put a portfilter guage on it, the pressure just rose and rose to 10.5 bar.
I have turned the pressure down, but now I get poor crema.
All the searching on the web tells me that static presure is different to dynamic presure readings.........Is this true, and which guage should I believe?
Should I just rely on the guage on my machine and be done with it?
Can there be that much difference between the two readings?
Any advice welcome.
Cheers


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