| 摘要 |
A device for application to moka espresso coffee machines, for producing coffee-cream comprises, downstream of a filter ( 5 ) overlaying a coffee powder holding basket ( 2 ), a membrane ( 7 ) made of rubber or other elastomeric material including one or more holes ( 8 ) having a very small diameter and/or one or more incisions, thereby causing a pressure increase in water passing through the coffee powder, in addition to an increase of the speed of the coffee infusion passing through the holes of the membrane.
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