A heat-clearing and detoxifying substitute tea and its preparation method

Abstract

The invention discloses substitute tea capable of removing heat and toxic materials which contains the following raw materials: dehydrated guava leaves, dried guava fruits, dried bitter gourd, tea leaves, liquorice, dehydrated stigma of corn, dehydrated roselle, pericarpium citri reticulatae, dehydrated stevia rebaudian, dehydrated semen cassia, chrysanthemum, dehydrated gynostemma pentaphylla, dehydrated lotus leaf, pink rose, broadleaf holly leaf and the like, wherein the raw materials are dehydrated and dried till the water content is controlled to be 5%-8%. In addition, the invention further discloses a preparation method of the substitute tea. The preparation method comprises the following steps: selecting fresh tea material, cleaning the fresh tea material, finishing, blanching, cooling, carrying out vacuum dewatering under variable pressures, drying with combination of solar energy and dehumidification, grinding raw materials, mixing and stirring, packing with small filter-bags. The technical solution provided by the invention overcomes the defects in the traditional series substitute tea processing methods, energy consumption and production cost are reduced, influences of weather are avoided, the drying is fast, the product quality is good, and the product meets the national standard related to food hygiene.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to a heat-clearing and detoxifying substitute tea and a preparation method thereof. Background technique [0002] The traditional processing method of series substitute tea is to use "sun drying" or "hot air drying" to dehydrate and dry the raw materials. The disadvantage of the sun-dried processing method is that when the weather is bad, the color of the product will turn dark brown after being placed for a long time, and even deteriorate due to microbial contamination; impact, the safety of the product is reduced. The problem of the processing method of hot air drying is that it consumes a lot of energy, which increases the production cost, and the product is affected by long-term high-temperature hot air, and the quality of the product is poor. [0003] At present, the better substitute tea drying methods include heat pump drying and solar drying. These two drying meth...

AI Technical Summary

Problems solved by technology

The disadvantage of sun-drying is that when the weather is bad, the color of the product will turn dark brown after being placed for a long time, and even deteriorate due to microbial contamination; impact, the safety of the product is reduced

The problem of the processing method of hot air drying is that the energy consumption is large, which increases the production cost, and the product is affected by the long-term high-temperature hot air, and the quality of the product is poor.

However, there are limitations in the application of these two drying methods in the dehydration of substitute tea: ①The drying temperature is low (generally 35°C to 45°C), and it is easy to be contaminated by microorganisms during the drying process

②The drying speed is too slow in the middle and late stages, and the drying time is long