Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of green tea and processing method, can improve the sensible quality of the green tea after CTC processes, and cuts down finished cost, and improves product stability and processing characteristics.
The embodiment of the invention is achieved in that a kind of green tea processing method, comprises the steps:
1), the bright leaf of tea is carried out hierarchical processing, removes non-tea impurity, leave in then to spread out under certain humiture environment or the natural environment and put processing;
2) processing that completes of the bright leaf of the tea of, step 1) being handled;
3), the tealeaves spreading for cooling after will completing is handled and is made it to ease back;
4), spreading for cooling leaf that step 3) is handled gained carries out the CTC break process, makes the tea bar in process, through drum extrusion, tear the granular fannings of cutting, curling and form;
5), with the tealeaves preliminarily dried after the step 4) processing;
6), the tealeaves after the step 5) processing being carried out the far infrared Titian handles;
7), packing.
As the preferred mode of step 1) of the present invention, processing controls tealeaves moisture content is put at 60-80% in said stand.
As step 2 of the present invention) preferred mode, saidly complete that to handle be to get into roller fixation through oscillating feeder, high-temperature hot-air completes, it is 300-400 ℃ that bowl temperature is set, fixation time 20~60 seconds; Completing perhaps, said step 2) handled and also can be adopted the high-temperature hot-air mode that completes, and hot blast temperature is 200-300 ℃, rotating speed 850-900r/min, fixation time 20~60 seconds.The employing processing mode that completes can make in the tealeaves heat temperature raising process at short notice dehydration rapidly, to evaporate bright leaf part moisture, makes the tealeaves deliquescing, guarantees the emerald green of appearance color and luster; Also can destroy with the bright leaf of passivation in oxidase active, suppress the enzymatic oxidation of the Tea Polyphenols etc. in the bright leaf, the grass smell that volatilizees simultaneously promotes the formation of good fragrance;
As the preferred mode of step 3) of the present invention, 1-1.5 hour said spreading for cooling processing time.
As another preferred mode of step 3) of the present invention, spreading for cooling under the temperature and humidity control condition, moisture regain, 25-30 ℃ of its environment temperature, humidity 85-90%, 1-2 hour spreading for cooling time are handled in said spreading for cooling.
As the preferred mode of step 5) of the present invention, said preliminarily dried is handled to water content 10~20%.
As the preferred mode of step 6) of the present invention, said far infrared Titian processing controls temperature in 60~80 ℃ of scopes, 2~3 hours Titian time, and water content is controlled at below 5%.After the tealeaves substantially dry, adopt far infrared Titian treatment process steps can remove some bad smells, improve fragrance, the flavour that becomes to sample tea with this, and make aridity reach standard, and can improve the stability in product later stage.Fragrance extracting machine can shine tealeaves by the Far-infrared Heating plate, tealeaves is rapidly heated and is penetrated into tealeaves inside to realize Titian; Simultaneously in processing procedure, regulate power, drum speed, Titian time as required; The inclination angle that also can pass through to regulate cylinder and ground is to realize the adjusting of Titian time, to be fit to the Titian operation of inhomogeneity tea.
The present invention also provides a kind of green tea by above-mentioned processing method preparation.
To sum up; It is higher to the present invention is directed to beverage tea requirement product stability, and raw material is easy to extract, the more high requirement of yield, adopt complete, spreading for cooling, CTC be broken; In conjunction with processing steps such as far infrared Titians; The sensible quality of some bad smells in becoming to sample tea, lifting product be can remove, product stability and processing characteristics improved, to satisfy the increasingly high taste demand of consumer.
The specific embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Embodiment 1:
The raw material that adopts: a bud three leaves, four leaves are 30 kilograms on the bright leaf of master's tea, and the bright leaf of tea that the bright leaf of tea can be different cultivars, Various Seasonal also can be rainwater leaf, hand getting leaf or machine picking leaves.
Process:
1) the bright leaf of tea is carried out hierarchical processing, remove Lao Ye, the thing of stalk and non-tea always, spread out in natural environment by 1.5cm thickness then and be placed on the bamboo plaque, put to the bright leaf moisture content to 70% of tea at the stand, spreads out foliation and get final product when soft;
2) the bright leaf after put at the stand gets into roller fixation through oscillating feeder, and 340 ℃ of bowl temperatures are set, and further reduces water content;
3) with step 2) water-removing leaves handled well carries out spreading for cooling, 1.5 hours spreading for cooling time;
4) leaf of step 3) being handled is sent into CTC three-line machine (India's product) cutting and crushing, makes the tea bar in process, through drum extrusion, tear the granular fannings of cutting, curling and to form;
5) knead leaf and adopt the Pilochun (a green tea) dryer to remove moisture, 120 ℃ of gross fire temperature were dried by the fire 15 minutes, control moisture about 10%;
6) tealeaves of step 5) being handled adopts far infrared fragrance extracting machine Titian, 60 ℃ of Titian temperature, and the time is about 2 hours;
7) the tealeaves final water content of handling well is controlled at below 5%, packs storage.
Embodiment 2:
The raw material that adopts: with a bud three leaves, four leaves is master's 100 kilograms on the bright leaf of tea, and the tea aquatic foods leaf that the bright leaf of tea can be different cultivars, Various Seasonal also can be rainwater leaf, hand getting leaf or machine picking leaves.
1) the bright leaf of tea is carried out hierarchical processing, remove Lao Ye, the thing of stalk and non-tea always, in air-conditioned room, spread out then and put, 25 ℃ of space temperatures, humidity 80%, put 18 hours at the stand approximately, and about bright leaf moisture content to 80%, the stand foliation is soft;
2) the bright leaf after put at the stand adopts high-temperature hot-air to complete 200 ℃ of hot blast temperatures, rotating speed 850r/min;
3) with step 2) water-removing leaves spreading for cooling under the temperature and humidity control condition, the moisture regain handled, 30 ℃ of environment temperatures, humidity 90%, spreading for cooling 2.5 hours;
4) leaf of step 3) being handled is sent into CTC three-line machine (India's product) fragmentation, makes the tea bar in process, through drum extrusion, tear the granular fannings of cutting, curling and to form;
5) leaf of step 4) being handled well adopts automatically continuously the net belt type dryer to dry, 110 ℃ of bake out temperatures, 15 minutes time, control moisture about 20%;
6) tealeaves of step 5) being handled adopts far infrared fragrance extracting machine Titian, 80 ℃ of Titian temperature, and the time is 3 hours.
7) the tealeaves final water content of handling well is controlled at below 5%, packs storage.
Embodiment 3:
The raw material that adopts: with a bud three leaves, four leaves is master's 100 kilograms on the bright leaf of tea, and the tea aquatic foods leaf that the bright leaf of tea can be different cultivars, Various Seasonal also can be rainwater leaf, hand getting leaf or machine picking leaves.
1) the bright leaf of tea is carried out hierarchical processing, remove Lao Ye, the thing of stalk and non-tea always, in air-conditioned room, spread out then and put, 30 ℃ of space temperatures, humidity 90%, put 20 hours at the stand, and about bright leaf moisture content to 70%, the stand foliation is soft;
2) the bright leaf after put at the stand adopts high-temperature hot-air to complete 250 ℃ of hot blast temperatures, rotating speed 900r/min;
3) with step 2) water-removing leaves spreading for cooling under the temperature and humidity control condition, the moisture regain handled, 25 ℃ of environment temperatures, humidity 85%, spreading for cooling 2 hours;
4) it is broken that the leaf of step 3) being handled is sent into the CTC three-line machine, makes the tea bar in process, through drum extrusion, tear the granular fannings of cutting, curling and form;
5) leaf of step 4) being handled well adopts automatically continuously the net belt type dryer to dry, 120 ℃ of bake out temperatures, 15 minutes time, control moisture about 15%;
6) tealeaves of step 5) being handled adopts far infrared fragrance extracting machine Titian, 70 ℃ of Titian temperature, and the time is 2.5 hours;
7) the tealeaves final water content of handling well is controlled at below 5%, packs storage.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.