Method for the manufacture of caffeine free black tea

Details Method for the manufacture of caffeine free black tea Method for the manufacture of caffeine free black tea

1977-04-26

1979-09-11

Golian, Joseph M.

Food or edible material: processes, compositions, and products

Contacting food in liquid or solid state with exteriorly...

426318, 426319, 426386, 426427, 426428, 426424, 426478, A23F 300

Patent

active

041675894

ABSTRACT:
A caffeine free black tea product is produced by an extraction procedure with a supercritical gas such as carbon dioxide in which first the aromatic content of the tea is extracted with dry gas, then the caffeine content is extracted with wet gas, and finally the decaffeinated tea is reimpregnated with the aromatic content.

REFERENCES:
patent: 1640648 (1927-08-01), Cross
patent: 3477856 (1969-11-01), Schultz
patent: 3532506 (1970-10-01), Rey et al.
patent: 3806619 (1974-04-01), Zosel
patent: 3823241 (1974-07-01), Patel et al.
patent: 3843824 (1974-10-01), Roseluis et al.
patent: 3879569 (1975-04-01), Vetzheem et al.

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