Process and an apparatus for producing teas

Drying and gas or vapor contact with solids – Process – With nondrying treating of material

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34471, 34475, A23F 316

Patent

active

055927521

ABSTRACT:
A process for producing a flavor-rich tea from tea leaves is disclosed. It comprises the steps of: (a) plucking the tea leaves; (b) withering the tea leaves; (c) rolling the tea leaves; and (d) drying the tea leaves in a drying apparatus in a circulating air at a drying temperature in the range of from about 30.degree. C. to less than about 80.degree. C. while maintaining a relative humidity of the circulating air in the range about 1% to 30%, the drying apparatus comprising a dehumidifying device for dehumidifying air, a temperature-moisture controlling device, and a drying room. The tea made from this process is capable of being subsequently stored at room temperature and substantially retains flavor-producing volatile constituents. Optionally, the tea leaves after step (d) can be baked for a short time to produce a roasted flavor.

REFERENCES:
patent: 1581803 (1926-04-01), Hulbert
patent: 4051264 (1977-09-01), Sanderson et al.
patent: 4203358 (1980-05-01), Vogt
patent: 4389422 (1983-06-01), Hudak
patent: 4526796 (1985-07-01), Ashikawa
patent: 4880656 (1989-11-01), Schutz et al.
patent: 5433019 (1995-07-01), Fu et al.

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