Espresso machine and method of making espresso by using said mac

Details Espresso machine and method of making espresso by using said mac Espresso machine and method of making espresso by using said mac

1990-03-23

1992-07-28

Jenkins, Robert W.

Food or edible material: processes, compositions, and products

Processes

Extraction utilizing liquid as extracting medium

210247, 210413, 99286, 99289R, 99295, A47J 1306, A47J 3130

Patent

active

051339838

ABSTRACT:
An espresso machine is proposed which comprises an espresso-making filter (10) capable of being filled with coffee powder and having a sieve (11, 12) with openings (13) of defined cross-sections for retaining the coffee powder when espresso is being made. Means are provided for varying the cross-sections of the openings (13). These means are preferably configured as needles (21) divided along their lengths into at least two portions of different cross-sections so that the openings (13) formed in the sieve (11, 12) can be closed to a greater or lesser extent depending on the penetration depth of the needles (21).

REFERENCES:
patent: 3567032 (1971-03-01), Kemper

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