Preparation method of instant clovershrub tea powder suitable for preparing pure tea beverage
A technology of Dahongpao tea powder and production method, which is applied in tea extraction and other directions, can solve problems such as poor sales, aroma loss, and oxidation of functional substances, and achieve the effects of reducing production costs, short contact time, and maintaining functional ingredients
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Embodiment 1
[0018] Roasted Dahongpao tea leaves 50kg, through the rotary distillation tower SCC recovery system for aroma recovery; through closed continuous extraction, the extraction temperature is 80 ℃, the extraction time is 1 hour; through tube centrifugal separation; through centrifugal thin film evaporation Concentration, the concentration temperature is 38°C, and the concentration of the liquid is 52BX; after the aroma is backfilled, the plate is spread, 6kg / plate, and the plate is quick-frozen. When the central temperature reaches -25°C, it is vacuum freeze-dried for 10 hours, and the highest temperature of vacuum drying is 83 DEG C, obtain 10.2kg instant tea powder, pulverize, pass 40 mesh sieves, pack with inner double-layer PE bag, outer corrugated box packing, store in the environment of normal temperature and dark place.
Embodiment 2
[0020] 50kg of roasted Dahongpao tea leaves are recovered through the SCC recovery system of the rotary distillation tower; after closed continuous extraction, the extraction temperature is 85°C, and the extraction time is 0.5 hours; through tubular centrifugal separation; through centrifugal thin film evaporation Concentration, the concentration temperature is 36°C, and the concentration of the liquid is 50BX; after the aroma is backfilled, it is plated, 6kg / plate, plated for quick freezing, and when the central temperature reaches -25°C, it is vacuum freeze-dried for 11 hours, and the maximum temperature of vacuum drying is 82 DEG C, obtain 10kg instant tea powder, pulverize, pass 40 mesh sieves, pack with inner double-layer PE bag, outer corrugated carton packing, store in the environment of normal temperature and avoid light.
Embodiment 3
[0022] 50kg of roasted Dahongpao tea leaves are recovered through the SCC recovery system of the rotary distillation tower; after closed continuous extraction, the extraction temperature is 85°C, and the extraction time is 0.5 hours; through tubular centrifugal separation; through centrifugal thin film evaporation Concentration, the concentration temperature is 38°C, and the concentration of the liquid is 51BX; after the aroma is backfilled, spread the plate, 6kg / plate, spread the plate for quick freezing, when the central temperature reaches -25°C, vacuum freeze-dry for 10.5 hours, the highest temperature of vacuum drying is 83 DEG C, obtain 10.15kg instant tea powder, pulverize, pass 40 mesh sieves, pack with inner double-layer PE bag, outer corrugated box packing, store in the environment of normal temperature and dark place.
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