Manufacturing process for dual-calcium-fortified low-fluorine brick tea

Abstract

The invention relates to a manufacturing process for dual-calcium-fortified low-fluorine brick tea. The manufacturing process comprises the following steps: picking Sichuan local summer tea with one bud and four to five leaves, drying and crushing the tea, stacking to ferment the tea naturally, and changing the taste of the tea to obtain raw material tea; mixing and stirring the raw material tea and calcium uniformly to prepare calcium-containing mother tea; mixing and stirring the calcium-containing mother tea and the fermented raw material tea uniformly to complete the addition of the calcium; pressing, cutting and shaping by using a mold after the raw materials of the tea added with calcium are sterilized and humidified by high-temperature steam; drying the pressed, cut and shaped tea raw materials in a drying machine at 80 DEG C, wherein the calcium is obtained by mixing 1 part of calcium citrate and 3 to 5 parts of calcium carbonate. According to the manufacturing process, the active ingredient, namely tea polyphenol, in the brick tea and the conventional flavor are not changed, the brick tea manufactured by the manufacturing process provided by the invention is made in a heat-insulated cup and is convenient and applicable. By the manufacturing method, the calcium content in the brick tea is improved by 1,000 to 5,000 mg / Kg, and 30 to 100 mg of the calcium can be supplemented per day if 20 g of brick tea is used per day, so that the calcium nutrition is improved greatly. The fluorine content of the brick tea is 150 to 180 mg / Kg and is much lower than a national standard; the fluorine poisoning cannot be caused after the brick tea is drunk for a long time.

Description

technical field [0001] The invention relates to the field of tea processing, in particular to a brick tea production process for avoiding fluorosis by adding calcium to reduce fluoride. Background technique [0002] Brick tea is an important special product for many ethnic minorities in my country, especially ethnic minorities in pastoral areas. The raw materials of brick tea are generally old tea leaves and a certain proportion of tea stems, which are fermented, steam sterilized, processed and pressed. They are small in size, easy to store, and suitable for long-distance transportation. Brick tea contains a variety of vitamins and rare elements necessary for the human body. Minorities who have lived in pastoral areas, plateaus, water shortages, and no vegetables for a long time use brick tea to make butter tea, milk tea, etc., which can decompose fat, relieve stomach, increase calories, supplement vitamins and minerals. Sichuan is a major province of brick tea. Sichuan br...

AI Technical Summary

Problems solved by technology

[0011] At present, there is no literature describing the tea-making process of defluorinated tea

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