Cold tea and its production method
The cold tea uses finished tea and drinking water as raw materials and is a kind of tea beverage without adding flavor ingredients and other nutrient ingredients.
The preparation method is that the tea is first cultivated and then put into a specially designed conical tank with heat preservation facilities and ultraviolet light. Under the irradiation of ultraviolet light, the tea is extracted with cold water with a water temperature of 0 ℃ ~ 4 ℃. The cold tea can be packaged without heat treatment or high temperature sterilization. The cold tea tastes good, is rich in natural nutrients, and has significant nutrition and health care effect on the human body.
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Spring tea picking and management
A shallow ploughing and cutting grass was carried out before spring tea mining to remove overwintering weeds. When picking fresh leaves, we should strictly implement the picking standards for the quality of famous and high-quality tea, pick them in batches and pick them in time. Generally pick bud head or one bud and one leaf (because the supply of high-quality tea in the market exceeds the demand, the economic benefit is high, the supply exceeds the demand in the big tea market, and the economic benefit is low). When picking tea, the buds and leaves of fresh leaves should be kept intact, even in length, fresh and clean, without sundries, bamboo baskets with good clean and ventilated performance should be used when shipping, and soft packing materials such as cloth bags and plastics should not be used.
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Identification and control of tea inchworm
Inchworm, commonly known as foot worms, is an insect of the family Lepidoptera and Geometridae. There are many kinds of inchworm in the tea garden, mainly including paulownia inchworm, silver inchworm, gray inchworm and Camellia oleifera inchworm. Among them, paulownia inchworm occurs most frequently, and it is also called big inchworm, which is the largest type of inchworm occurring in the tea garden. it harms the larvae, eats a lot of food and hosts, and in serious cases, eats all the buds of the tea garden to form a smooth rod. The adult worm is silvery gray, with a body length of 20ml 25mm and a wingspan of 50mi 70mm. The wing surface is densely covered with black dots, and the forewing has three distinct yellow strips.
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