| 摘要 |
FIELD: food industry. ^ SUBSTANCE: invention relates to devices for preparing drinks. Proposed pack is closed flexible cartridge providing extraction under pressure and contains powder for preparing drink. Cartridge consists of first and second sheets of round, oval or polygonal form, between which space is left for powder and which are welded to each other along outer edge. First sheet is made of filter paper or nonwoven material. Second sheet is made of filter paper or nonwoven material or composite material. First sheet is made to pass water at atmospheric pressure or when is pierced by means of piercing device, and second sheet is made to pass water only if gauge pressure of 0.1 to 3 bar is built inside cartridge in process of extraction. ^ EFFECT: improved extraction, preparation of coffee with good foam. ^ 5 cl, 5 dwg |
