Method and device for dark tea pile fermentation
A technology of piling and black tea, applied in the direction of tea treatment before extraction, can solve the problems of uncontrollable temperature and humidity of black tea piling, large quality changes, etc., to improve the efficiency of tea making, improve the quality of black tea, and achieve uniform fermentation. Effect
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Embodiment 1
[0029] A method for fermenting black tea, the steps are as follows:
[0030] (1) Choose sun-dried or baked green tea raw materials (choose sun-dried or sun-dried green tea raw materials with one bud and two leaves), spread the raw materials evenly on the clean floor, and each layer has a thickness of 5 or 6 or 7 or 8 or 9 or 10cm , use a sprayer (common, purchased in the market) or a water spray device (common, purchased in the market) to spray water in layers, control the water content of the tea leaves after water spraying is 28-38%, repeat 2 or 3 or 4 times evenly after spraying, Make the tea absorb water evenly, and get the tea leaves with water;
[0031] (2) Transfer the fermented tea leaves to a special fermentation equipment (the device of the present invention) for pile fermentation, grasp the pile height of 50 or 60 or 80 or 100 or 110 or 120cm, and the pile temperature of 40 or 43 or 46 or 49 or 52 or 55°C, the temperature outside the heap is ≥25°C, or 28°C, or 30°C...
Embodiment 2
[0033] Example 2: Effects of different stacking humidity on the quality of black tea
[0034]Choose raw materials with one bud and three or four leaves sun-dried, spread the raw materials evenly on the clean floor, each layer is 6cm thick, use a sprayer or a water spray device to spray water in layers, and grasp the water content of the tea leaves after spraying water 38%. Repeat 3 times to evenly pile the tea leaves to absorb water evenly. Set the pile temperature to 45°C, and pile them up for 18 days under the humidity conditions of 55%, 65%, 75%, 85%, and 95%, respectively. The results (Table 1) show that it is better to control the humidity at 75%-85% during the heaping process of black tea, and the comprehensive score is higher. When the humidity is 55%, the aroma of the green brick tea produced is still pure and mostly fungal, and the taste is slightly bitter. When the humidity is 95%, although the tea has a high fragrance, it is slightly stuffy and the bottom of the l...
Embodiment 3
[0042] Embodiment 3: Effects of different stacking temperatures on the quality of black tea
[0043] Choose raw materials with one bud and three or four leaves sun-dried, spread the raw materials evenly on the clean floor, each layer is 6cm thick, use a sprayer or a water spray device to spray water in layers, and grasp the water content of the tea leaves after spraying water 38%. Repeat 3 times to evenly pile the tea leaves to absorb water evenly. The fermentation humidity was set to 80%, and the piles were stacked for 18 days under the temperature conditions of 30°C, 35°C, 40°C, 45°C, and 50°C respectively. The results (Table 3) show that it is better to control the temperature at 45°C-50°C during the heaping process of black tea, and the comprehensive score is higher. alcohol. When the temperature is lower than 35°C, there will be more black mold in the process of fermenting the tea leaves, and the dark tea produced will have bad aroma, sour and musty taste, sour taste, h...
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