PRODUCTION METHOD OF RECONSTITUTED TEA Russian patent published in 2009 - IPC A23F3/00 

FIELD: food products.

SUBSTANCE: birch leaves are consequently extracted with liquid carbon dioxide and drinking water to obtain CO₂-miscella and water extract. Tea waste products are mixed with nonpolar liquefied gas, extracted and minced with repeating pressure release in the extraction mixture to the pressure lower of extract saturated vapour at extracting temperature. Extract and extraction cake are separated. Then the extraction cake is slurred in water solution of food acid. Calcium and magnesium salt of carbonic acid and water extract of birch leaves is added to the liquor. It is formed, dried to the residual moisture of 13-15%, cut, and soaked with CO₂-miscella of birch leaves and gas-liquid extract of tea waste products with simultaneous pressure increase. Pressure is released to atmosphere with simultaneous freezing of soaked carbon dioxide and the last is sublimated to obtain the target product in the leftover.

EFFECT: invention allows to obtain product from tea waste products.