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[bc_xjl]

I am using Silvia machine and heard others would like to lower the vapour pressure from generally 10-12bar to 8-9 bars steam for a perfect cup of espresso.

Today, I've tried opening the hot water/steam stick a bit in order to let excess water/steam out. The result is quick good that I can control the flow of my espresso (i.e. 30cc within 30 sec.) and quite good crema