What difference does it make to the taste of the brew having the OPV valve set at different levels? While brewing if the pressure gets up to 15 bars versus 9 bars how would that affect the flavour of coffee?
Assuming that the grind, dosing and tamping and every parameter is correct and consistent and in every case adjusted to get a 25 ml shot in 25 secs, or 30/30, or whatever you prefer as long as it is the same every time.
Assuming that the grind, dosing and tamping and every parameter is correct and consistent and in every case adjusted to get a 25 ml shot in 25 secs, or 30/30, or whatever you prefer as long as it is the same every time.
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