Cold-Brew Green Tea Composition and Method of Brewing Cold-Brew Green Tea
OwnerKazushi Tsuji, Kanji Sagawainventors
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Abstract
The present application is directed to various embodiments of cold-brew green tea compositions, methods of preparing a cold-brew green tea beverage, an infusion bag for cold brewing green tea, and a green tea cold brewing system. In at least one embodiment, the cold-brew green tea composition comprises a mixture of green tea leaf pieces and powdered green tea leaves. Mixing the cold-brew green tea composition in chilled water may produce a green tea beverage having a high concentration of catechins.
Claims20
A cold-brew green tea composition, comprising:
- a mixture of green tea leaf pieces ranging in size from about 2 millimeters to about 6 millimeters and powdered green tea leaves ranging in size from about 20 micrometers to about 40 micrometers, in a ratio of green tea leaf pieces to green tea leaf powder of about 2:1 to about 10:1, the mixture when mixed in water having a temperature less than or equal to about 10° C. produces a concentration of catechins in the water ranging from about 0.1 milligrams/milliliter to about 0.8 milligrams/milliliter after about 1 minute of mixing.
A method for preparing a cold-brew green tea beverage, comprising:
- preparing green tea leaf pieces by reducing green tea leaves into pieces;
- preparing green tea leaf powder by reducing green tea leaves into particles;
- combining the green tea leaf pieces and green tea leaf powder in a ratio ranging from about 2:1 to about 10:1 to form a green tea mixture;
- and
- contacting the green tea mixture with water having a temperature less than or equal to about 10° C. for about 1 minute to produce a concentration of catechins in the water ranging from about 0.1 milligrams/milliliter to about 0.8 milligrams/milliliter.
An infusion bag for cold brewing green tea, comprising:
- at least one nonwoven fabric having a mass per unit area of about 15 grams/square meter to about 30 grams/square meter, a ventilation rate of about 150 milliliters/centimeter-second to about 450 milliliters/centimeter-second, and a filtering rate of about 1.5 seconds/500 milliliters to about 2.5 seconds/500 milliliters;
- a width ranging from about 20 millimeters to about 40 millimeters to allow the bag to be readily inserted through the mouth of a standard water bottle;
- a length selected to provide a green tea capacity sufficient to produce a cold-brew green tea beverage of satisfactory taste after a period of 1 minute of mixing the infusion bag with water having a temperature less than or equal to about 10° C. in the water bottle.
A green tea cold brewing system, comprising:
- an infusion bag made of at least one nonwoven fabric having a mass per unit area of about 15 grams/square meter to about 30 grams/square meter, a ventilation rate of about 150 milliliters/centimeter-second to about 450 milliliters/centimeter-second, and a filtering rate of about 1.5 seconds/500 milliliters to about 2.5 seconds/500 milliliters;
- wherein the infusion bag is shaped to be readily inserted into a mouth of a standard water bottle;
- and
- green tea leaf pieces ranging in size from about 2 millimeters to about 6 millimeters mixed in a ratio of about 2:1 to about 10:1 with green tea powder ranging in size from about 20 micrometers to about 40 micrometers.
Dependencies are inferred from the claim text.