TH23880A - Process for preparing instant black tea - Google Patents

Abstract

In this process, black tea leaves are extracted with hot water at temperatures between 60 and 130°C. The tea leaves are separated, and this first extract is concentrated to a solid-weight ratio of 5 to 12%. It is then cooled to between 5 and 15°C to form an insoluble cream, which separates from the first concentrated extract. This tea cream is mixed with the remaining black tea leaves or with green tea leaves. This mixture is then extracted with water at temperatures above 70°C to obtain a second extract, which is separated from the remaining tea leaves. The first and second extracts are then mixed, concentrated to the desired solid-weight ratio, and dried.

Claims (4)

1. The process for preparing ready-to-use black tea that is soluble in cold water involves extracting black tea leaves with hot water at temperatures between 60 and 130°C. The tea leaves are separated, and the first extract is concentrated to achieve a solid-weight ratio of between 5 and 12%. This concentrate is then cooled to between 5 and 15°C to form a non-soluble cream. This cream is separated from the first concentrated extract and mixed with the remaining black tea leaves or green tea leaves. This mixture is then extracted with water at temperatures above 70°C to obtain a second extract, which is separated from the remaining tea leaves. The first and second extracts are mixed, concentrated to the desired solid-weight ratio, and then dried. 2. The process described in claim 1 involves extraction to obtain a secondary extract at temperatures between 70 and 95°C. 3. The process described in claim paragraph 2 involves a second extraction taking between 60 and 100 minutes. 4. One of the processes described in claims 1 through 3 is characterized by the use of green tea leaves in an amount between 1/3 and 1/5 of the initial amount of black tea leaves in the second extraction.