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A kind of processing method of Tieguanyin instant tea powder
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A processing method, the speed of sound technology, applied in tea extraction, tea treatment before extraction, etc., can solve the problem of low ratio, achieve the effect of bright yellow-green color, low water content, suitable for long-term storage
Inactive Publication Date: 2015-08-26
FUJIAN ANXI YUFU TEA
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But the proportion of this extraction is still low
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Embodiment 1
[0035] A processing method for Tieguanyin instant tea powder, using Tieguanyin tea leaves as raw material, and completing the steps of pretreatment, extraction, concentration and drying, wherein,
[0036] Pretreatment: including shake green, fix green, knead and dry, among them,
[0037] Shaking green is to add Tieguanyin tea leaves into the green shaking machine, and alternately shake green with cold wind and hot wind; generally, the temperature of cold wind is 10-20°C, and the temperature of hot wind is 40-50°C. The temperature and time are determined by those skilled in the art. Depending on the weather conditions and the withering of the tea leaves, the time is generally about 4 hours.
[0038] Greening is to destroy and passivate the oxidase activity in fresh tea leaves by high temperature, inhibit the enzymatic oxidation of tea polyphenols in fresh leaves, evaporate part of the water in fresh leaves, make tea soft, easy to knead and form, and emit green odor at the same ...
Embodiment 2
[0046] A processing method for Tieguanyin instant tea powder, using Tieguanyin tea leaves as raw material, and completing the steps of pretreatment, extraction, concentration and drying, wherein,
[0047] Pretreatment: including shake green, fix green, knead and dry, among them,
[0048] Shaking green is to add Tieguanyin tea leaves into the green shaking machine, including shaking green with cold air and hot air alternately; the diameter of the green shaking machine is 1.1m, the length is 3.9m, and the power of the fan connected to the green shaking machine is 2.2KW ,The length of the wind blade is 20cm, the width is 20cm, and the diameter of the air inlet is 30cm. The hot air generated is generally 40-50°C, and the temperature of the cold air is generally 10-20°C. , the higher the temperature of the hot air. In the present embodiment, the following steps are carried out: (1) stand still in the cold wind for 20 minutes; (2) shake the greens in the hot wind for 30-50 minutes;...
Embodiment 3
[0057] Implementation with reference to Example 2, the difference from Example 2 is: in the extraction, the tea semi-finished product and the volume concentration of 50 ℃ are 60% ethanol solution by weight ratio of 1: 10, and then the flow rate is 0.5m 3 / h reflux leaching for 1-2 hours. In the end, the extraction ratio amounted to 28%.
[0058] The finally obtained Tieguanyin instant tea powder has a raw material utilization rate of 19%, which is suitable for long-term storage. At the same time, it retains the essential characteristics of Tieguanyin tea. The color is bright yellow and green, and it has the unique phonology of Tieguanyin tea.
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Abstract
The invention provides a processing method for Tieguanyin instant teapowder. According to the invention, Tieguanyin tea leaves are used as raw materials to be subjected to processes of pre-treatment, extraction, concentration and drying, wherein the pre-treatment comprises the following steps: conducting rocking of green leaf with cold wind and hot wind alternatively, and rolling once ; the extraction comprises the following steps: conducting smashing treatment on a tea leaf semi-finished product , wherein the particle size of the smashed tea leaves is that the smashed tea leaves can be sieved by a sieve of 40-60 meshes, matching with an ethyl alcohol solution with the volume concentration of 30%-50% and at the temperature of 40-60 DEG C according to the weight ratio of 1:(8-10), and conducting back flowing with the flow rate of 0.2-0.5 m<3> / h and extracting for 1-2 h to obtain a liquid of a lixivium; finally, roughly filtering the lixivium to obtain a tea soup. The tea powder has high raw materialutilization rate and low water content, is suitable for long-term preservation, and meanwhile, retains essential characteristics of the Tieguanyin tea leaves, has yellowish green and bright color, and has the specific flavor of the Tieguanyin tea leaves.
Description
technical field [0001] The invention relates to a processing method of instant teapowder, in particular to a processing method of Tieguanyin instant tea powder used for Tieguanyin tea. Background technique [0002] Tieguanyin belongs to the oolong tea category and is one of the top ten famous teas in China. It is a representative of oolong tea and is produced in Anxi County, Fujian Province. Between green tea and black tea, it belongs to the semi-fermented tea category. Tieguanyin has a unique "Avalokitesvara rhyme", with a delicate fragrance and elegant rhyme, just like the fragrance of orchids. Its extraordinary character is well-known both at home and abroad. In addition to the health functions of general tea, Anxi Tieguanyin also has the functions of anti-aging, anti-cancer, anti-arteriosclerosis, prevention and treatment of diabetes, clearing heat and reducing fire. [0003] The traditional brewing method is to brew Tieguanyin tea leaves directly, but the tea leaves a...
Claims
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Application Information
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