Preparation method of black tea bag

Abstract

The invention discloses a preparation method of a black tea bag. The method adopts preliminarily processed black tea or finely processed black tea as the raw material tea to process the tea bag, and the specific steps include: 1. purification: 1.1 firstly humidifying tea to a saturated degree with solvent water, then placing the humidified tea in a vacuum environment, and applying microwave to dry the tea to a water content of less than or equal to 10%; 1.2 repeating step 1.1 several times; 2. tea winnowing and sieving; 3. crushing and screening; 4. blending and uniform piling; 5. sterilization: 5.1 firstly, wetting tea with purified water, then putting the wetted tea in a vacuum environment timely, applying microwave to conduct sterilization and performing drying; and 5.2 repeating the step 5.1 at least once; 6. baking: baking tea to a water content of less than or equal to 6%; and 7. packaging, thus obtaining a tea bag finished product. Under the premise of not damaging the aroma, taste and quality already existing in tea, the method provided by the invention realizes thorough purification of the inside and outside of tea, and ensures the health and safety of the tea bag.

Description

technical field [0001] The invention relates to a method for preparing black tea bagged tea. Background technique [0002] Since it was invented at the beginning of the 20th century, teabags have been occupying an important position in the entire tea consumption with its advantages of "quantitative, hygienic, convenient and fast". [0003] The processing of teabags usually goes through processes from raw materials to finished products: sterilization, crushing, screening, blending, heaping, drying, sterilization, packaging and other processes. Some of the raw materials use primary processed tea, and some use refined processed tea. [0004] Because tea is easy to breed microorganisms when the temperature and humidity are appropriate, the raw tea is first sterilized when processing teabags, and then sterilized again before packaging, and it is required that hands are not allowed to touch the tea leaves and the inner packaging of teabags during the entire process The purpose is...

AI Technical Summary

Problems solved by technology

[0005] However, since the fresh black tea leaves are directly processed after picking, the primary or refined tea will inevitably be covered with pollutants such as dust, insect eggs, bird and animal feces, and there will be pesticides on the surface and inside of the tea leaves. Residues, these pollutants and pesticide residues from planting technology, planting environment, etc. can not be effectively removed only through wind selection, screening, sterilization and other existing tea bag processes. These pollutants and pesticide residues still threaten drinkers health