Preparation method of instant tea
A tea and brewing technology, which is applied in the field of rapid tea brewing, can solve the problems of not considering the clarity, not solving the clarity, not clear enough, etc., to achieve better taste, less turbidity and precipitation, and reduce macromolecules the effect of the substance
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Embodiment l
[0026] Take 200kg of green tea, crush it into powder, add 2000kg of water, extract 3 times at 95°C for 30 minutes each time to obtain green tea extract, then centrifuge and filter through membrane to obtain a clear and translucent filtrate. The membrane is concentrated until the Brix Brix of the concentrate is 12 o , the above-mentioned concentrated solution of green tea is carried out alkali transsolution, adds potassium hydroxide solution, adjusts pH value to be 10, and constantly stirs 0.5 hour, obtains 340.2 kilograms of transsolutions (Brix sugar content 14 o ), then feed 5 kilograms of food-grade oxygen into the above-mentioned transfer solution, allow the oxygen to fully mix and react with the tea liquid for 1 hour, then add citric acid, adjust the pH value of the tea liquid to 6.5, let stand for 0.5 hour, centrifuge, and then Carry out spray drying, obtain the instant tea of the high clarity of 45.3 kilograms.
Embodiment 2
[0028] Take 200kg of crushed oolong tea, add 4000kg of water, extract 1 time at 90°C for 1 hour each time to obtain an oolong tea extract, then centrifuge and filter through a membrane to obtain a clear and translucent filtrate, and concentrate the above-mentioned filtrate with a reverse osmosis membrane. until the Brix of the concentrate is 10 o , the above-mentioned oolong tea concentrated solution is carried out alkali transsolubility, adds potassium hydroxide solution, adjusts pH value to be 11, and constantly stirs 0.5 hour, obtains 680.1 kilograms of transsolutions (Brix sugar content 13 o ), and then feed 10 kilograms of food-grade oxygen into the above-mentioned transfer solution, let the oxygen and the tea liquid fully mix and react for 0.5 hours, then add citric acid, adjust the pH value of the tea liquid to 7.5, let stand for 0.5 hours, centrifuge, and then carry out Spray drying, obtains the instant tea of the high clarity of 42.1 kilograms.
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