Pu'er tea product and preparation method thereof
A technology for Pu'er tea and products, applied in the field of Pu'er tea products and their preparation, can solve the problems of volatilization of taste substances, aroma substances, destruction of active substances in tea soup, low production efficiency, etc., and achieves high extraction rate, smooth appearance and easy operation. Effect
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preparation example Construction
[0068] Specifically, in one aspect, the present invention provides a method for preparing Pu'er tea products, comprising the following steps:
[0069] (1) extract tea raw material, obtain extract;
[0070] (2) centrifuging the extract to obtain a centrate;
[0071] (3) performing membrane filtration on the centrate to obtain the filtrate;
[0072] (4) performing membrane concentration on the filtrate to obtain a concentrate; and
[0073] (5) The concentrate is freeze-dried and processed into Pu'er tea products.
[0074] The preparation method of the Pu'er tea product also includes (6) the step of molding the freeze-dried product to obtain a shaped Pu'er tea product.
[0075] The above steps (1)-(6) will be described in detail below, but these descriptions in no way limit the present invention.
[0076] In step (1), the tea raw material can be Pu-erh tea made by processing Yunnan big-leaf tea leaves, preferably Pu-er tea obtained by sun-drying and microbial fermentation of ...
example 1
[0105] Present example 1 provides a kind of preparation method of Pu'er tea, comprises the following steps:
[0106] Step A-1
[0107] The tea raw material is obtained by sun-drying and microbial fermentation of Yunnan large-leaf Pu-erh tea from Yunnan Province, and storing it through 3-year warehousing process.
[0108] Step A-2
[0109] According to the raw material / water ratio of 1:10, pour boiling water into the extraction tank, then put the tea leaves into the extraction tank according to the ratio, and extract twice, each extraction time not less than 30min.
[0110] Step A-3
[0111] The extracted tea soup is filtered through a 60-mesh filter and stored in a medium storage tank, and then the centrifuge (DHC-300) is turned on and centrifuged at a speed of 300L / h to remove dust, particles and macromolecular impurities. The tea soup after centrifugation has no impurities visible to the naked eye, and then it is stored in a medium storage tank.
[0112] Step A-4
[011...
example 2
[0126] The tea paste was prepared in the same manner as in Example 1, except that the ratio of raw materials / water was changed to 1:6.
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