CN104783300A

CN104783300A - Famous qualified black tea (Tie Guanyin and oolong tea) fresh-keeping method

Info

Publication number: CN104783300A
Application number: CN201510058063.7A
Authority: CN
Inventors: 易华
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-01-30
Filing date: 2015-01-30
Publication date: 2015-07-22

Abstract

The present invention discloses a famous qualified black tea (Tie Guanyin and oolong tea) fresh-keeping method, and relates to a famous qualified black tea (Tie Guanyin and oolong tea) fresh-keeping method capable of keeping the color, aroma, taste and shape of the famous qualified black tea (Tie Guanyin and oolong tea) which is stored for more than half year like that of new tea. According to the method, the new tea with the moisture controlled in 2-3.5% is covered with more than one layer (perferably two layers) of composite films or aluminum foil bags, cans and tins, and the new tea is placed in a refrigeration house with the temperature controlled at 0 to-18 DEG C for storage. The method can keep the color, aroma, taste and shape of the new tea which is stored for more than half year like that of the new tea, so that people can drink high-quality famous qualified new tea all the year round. The new tea is stored in the refrigeration house of Yingshan county food company since June 1997, the famous qualified black tea (Tie Guanyin and oolong tea) treated by the method can kept as the new tea when the famous qualified black tea (Tie Guanyin and oolong tea) is taken out in November the same year, so that the method is truly feasible. Thereafter, the famous qualified black tea (Tie Guanyin and oolong tea) is stored in the refrigeration house of the Yingshan county food company by the method every year.

Description

Famous-brand and high-quality black tea (Iron Guanyin, oolong tea) preservation method

Technical field

The present invention relates to one and famous-brand and high-quality black tea (Iron Guanyin, oolong tea) is preserved half a year more than, color is as famous-brand and high-quality black tea (Iron Guanyin, the oolong tea) preservation method of newly picked and processed tea leaves.

Background technology

There is black tea (Iron Guanyin, oolong tea) tea place area more than 200 ten thousand mu in China then, produces up to ten million kilograms of tealeaves per year, and has multiple Famous High-quality Tea series, nearly 20 kinds.But during annual Famous High-quality Tea goes on the market in a large number, temperature is high during this period of time, and air humidity is large, if three or five days do not sell away, the easy moisture absorption goes bad, and particularly fragrance is thin out, affects the sale of tealeaves, and numerous tea growers puzzle one's brains.For the long period preserves famous-brand and high-quality black tea (Iron Guanyin, oolong tea), be generally that tealeaves is placed on ventilation part, though time slightly long point, its colour changed into yellow blackening of tealeaves, tealeaves is thin out, and fragrance seriously runs off, cannot compared with newly picked and processed tea leaves.For this reason, the method finding out famous-brand and high-quality black tea (Iron Guanyin, oolong tea) fresh-keeping is particularly necessary.

Summary of the invention

The object of the invention is, provide one famous-brand and high-quality black tea (Iron Guanyin, oolong tea) can be preserved half a year more than, color is as famous-brand and high-quality black tea (Iron Guanyin, the oolong tea) preservation method of newly picked and processed tea leaves.

The object of the invention implementation is, famous-brand and high-quality black tea (Iron Guanyin, oolong tea) preservation method: by moisture control high-quality composite membrane of (two layers are outstanding good) more than newly picked and processed tea leaves overcoat one deck of 2-3.5%, and be placed on temperature and control to deposit in the freezer of 0 to-18 DEG C.

Famous-brand and high-quality black tea (Iron Guanyin, the oolong tea) color of half a year more than is preserved as newly picked and processed tea leaves by this method.People can be met like this and whenever can drink newly picked and processed tea leaves throughout the year.

Detailed description of the invention

This famous-brand and high-quality black tea (Iron Guanyin, oolong tea) preservation method is by moisture control high-quality composite membrane of (two layers outstanding good) more than newly picked and processed tea leaves overcoat one deck of 2-3.5%, and is placed on temperature and controls to deposit in the freezer of 0 to-18 DEG C.Also the newly picked and processed tea leaves of overcoat film can be placed in the freezer that temperature controls at-10 DEG C to deposit.

General famous-brand and high-quality black tea (Iron Guanyin, oolong tea) is dried, and mass dryness fraction, between 85-90%, because humidity is comparatively large, is deposited and easily gone mouldy, make tealeaves variable color spoiled.The moisture control of famous-brand and high-quality black tea (Iron Guanyin, oolong tea) at 2-3.5%, is effectively reduced the possibility that tealeaves goes mouldy by this method, at the composite membrane of more than two layers, newly picked and processed tea leaves overcoat, the color of tealeaves is preserved in film.Particularly fragrance preservation effect is better.Storage temperature controls at 0 to-18 DEG C by the present invention, is preferably-10 degree. and now fragrant molecule is in disabled state.The applicant finds through tens of experiments for many years, black tea (Iron Guanyin, oolong tea) is preserved more than 0 degree, its chemical analysis, Tea Pigment, Tea Polyphenols can change, tealeaves flavescence, blackening, rotten, fragrance reduces, below 0 DEG C preserve, amino acid, the aromatic substance of tealeaves can change, fragrance gradually without.If the moisture control of black tea (Iron Guanyin, oolong tea) is at 2-3.5%, and overcoat more than two layers films, would not significant change be there is in its color.The temperature of the preservation method of famous-brand and high-quality black tea (Iron Guanyin, oolong tea) controls to control obvious difference with the temperature of famous green tea.

This method is newly investigated for many years through Yingshan County bureau of agriculture senior agronomist Fu Zhu, proves that this method is truly feasible, and confirms to preserve famous-brand and high-quality black tea (Iron Guanyin, oolong tea) owing to have employed this method.Yingshan County food company freezer is famous-brand and high-quality black tea (Iron Guanyin, oolong tea) the 3000 kilograms November extremely then of preservation in June, 1997 this method process, the same with newly picked and processed tea leaves during outbound, is agreed to have purchased by outer thamnolia vermicularia.After this, the famous-brand and high-quality black tea (Iron Guanyin, oolong tea) with this method process often deposited every year by this freezer.

In view of I has made outstanding contributions to local Tea Industry, in recent years, successively obtain the People's Government of Hubei Province, the Huanggang City People's Government progress prize in science and technology, and multinomial department rewards, national media report in succession.

Claims

1. famous-brand and high-quality black tea (Iron Guanyin, oolong tea) preservation method.It is characterized in that tea moisture controls the high-quality composite membrane of more than newly picked and processed tea leaves overcoat one deck of 2-35% (two layers outstanding good) or aluminium pool bag, to listen or in tank, be placed in humid control at 25-45%, temperature controls to deposit in the freezer of 0 DEG C ,-10 DEG C ,-18 DEG C.

2. famous-brand and high-quality black tea according to claim 1 (Iron Guanyin, oolong tea) preservation method, is characterized in that the newly picked and processed tea leaves of overcoat high-quality composite membrane, is placed in temperature and controls to preserve at-10 DEG C of freezers.