Lipton, Division of Conopco, Inc.

Jeffrey Bryn Richards

Ian Noble

Matthew John Barrett

William Joseph Leo

Dominic P Black

A method for making a cold water soluble black tea extract. The method involves extracting tea solids from black tea leaves using an extraction liquid to provide a whole tea extract, oxidizing the whole tea extract under superatmospheric pressure and at a temperature above 60&deg; C. to provide a cold water soluble liquor, cooling the cold water soluble liquor to precipitate any residual cold water insoluble material, and separating the residual cold water insoluble material from the cold water soluble liquor to give the cold water soluble black tea extract. A method for making a cold water soluble black tea powder is also described.

Method for making a cold water soluble tea extract

This invention concerns a method of altering the colour characteristics of a tea composition, including treating a tea infusion that contains cold water soluble tea solids but is substantially free of cold water insoluble tea solids, with an oxidising agent in a reaction vessel at a temperature and pressure in excess of the ambient temperature and pressure.

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Northampton, United Kingdom

Jeffrey Bryn Richards