Infusion method and device for making a coffee beverage
作者： Virginio Cortese
DOI:
关键词: Capsule 、 Materials science 、 Ground coffee 、 Waste management 、 Infusion method 、 Integrally closed 、 Composite material
摘要: To make a coffee beverage in percolator (1), hot water is fed, at relatively low pressure of about two atmospheres, into sealed capsule (2) defined by cup-shaped body (3) housing measure of ground coffee and closed fluidtight manner an open end by a sealing wall (7) connected integrally to the cup-shaped body (3); being extracted from sealed capsule through hollow extraction needles (28), which have longitudinal inlet slits (31) substantially 0.3 mm width, are inserted (2) through before fed into (2), so that relative longitudinal extend inside capsule (2) by respective lengths least equal third of the depth relative (3).
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