Embodiment
Embodiment to the present invention is described further below in conjunction with accompanying drawing:
Embodiment: concrete production technique is by 1. tea (powder) solid-state (wet heap) fermentation; 2. liquid distiller's yeast brew; 3. tealeaves (powder) and liquid distiller's yeast, distiller's yeast mixed fermentation; 4. four processes such as solid state distillation are formed.
1. tealeaves (powder) solid state fermentation: by (1) raw material tealeaves, pulverize (2) by technical process, and (3) add water, and (4) heat is steamed (5) spreading for cooling, compositions such as (6) pile-fermentation.
(1) raw material tealeaves:, require fragrant pure, the free from extraneous odour of dry, tea to go bad and other class impurity no matter tender tea stalk, tea dust that the dried tea blank of teas kind, rank, explained hereafter and machinery are gathered and processed down all can adopt.
(2) pulverize: adopt machinery (beater grinder) unification to be ground into Powdered, title " tea powder ", can pass through 40 mesh sieves approximately.The purpose of pulverizing is to be convenient to the unified of raw material utilize, and improves material utilization, also is convenient to add water and absorbs.
(3) water distribution: directly adding free from extraneous odour and drink clear water 1.8-2.2 doubly in the tea powder, is appropriateness with tea powder water content about 60%, repeatedly mixes and stirs, and requires the tea powder to absorb water fully evenly.
(4) heat is steamed, and its effect is sterilization, and the composition that emits bad smell mainly is that heat is wet, enzymatic action for tealeaves rises in the pile-fermentation process.Concrete operations are similar with traditional loaded steamer steaming grain.Adopt tradition to steam material rice steamer bucket for steaming material equipment, with steam-heated cal(l)andria, see gas successively evenly material loading, go up rice steamer and finish, treat garden gas, continue approximately to steam 10 minutes, can go out rice steamer.
(5) diffusing cool: as the tea powder after the heat steaming to be gone out rice steamer spread on clean water mud ground face, in time push heat radiation aside with wooden winnowing spade.Degree of heat radiation will be according to the room temperature control of fermentation (wet heap), generally more than 30-35 ℃.
(6) fermentation (wet heap): be make white spirit peculiar operation together in making of tea, also be to form the make white spirit key operation of quality and yield of tea, it mainly acts on is the carbohydrate composition of unifying in the tealeaves, under hot wet condition, produce enzymatic action, and change into fermentable sugar, can eliminate simultaneously the green grass gas in the different tealeaves, impel the tea powder to produce the vinasse giving off a strong fragrance naturally.
Tea powder fermentation (wet heap) requires to have that suitable condition, wet stacking yard will clean totally, free from extraneous odour, cleaning-less bacteria infection, and room temperature can be more than 25 ℃, and relative humidity is about 85%.
Concrete operations, tea powder a little more than room temperature after the heat radiation gently is stacked at proving room, wet cloth of underlay or plastic cloth, stack the about 40-50cm of thickness, wide about 70-100cm, tea powder water content is about 60%, piled around the tea powder should note, end face is clapped tight, can not excessively compress, in order to avoid anoxic in the heap influences quality, require the loam cake plastic cloth to be suitable for heat and moisture preserving, the wet heap time was generally 20-25 hour, also can suitably grasp according to room temperature and wet heap degree, should diligently check the heap temperature in the wet heap process, as pile temperature above more than 60 ℃, answer turning once,, also be suitable for the wet heap of tea powder even in order to avoid the tea powder is rotten.Wet heap degree: have blue or green gas peculiar smell not have the vinasse giving off a strong fragrance with the tea powder and be that wet heap is not enough, should prolong the wet heap time; Do not have blue or green smell with the tea powder, the tea powder distributes the vinasse giving off a strong fragrance naturally for appropriate in the heap, can add koji fermentation under the fermentation pithos mixes liquid distiller's yeast; As the tea powder acid smell of turning sour being arranged is wet heap transition, is unfavorable for mixed fermentation, can influence the quality among the wine body.
2. liquid distiller's yeast brew
Liquid distiller's yeast brew is that to select the high rice of the starch-containing matter of grain class for use be raw material, is the production technique according to traditional distilled liquor, first culture saccharification, after add water 120%-130% fermentation and be liquid distiller's yeast.By technical process for (1) raw material rice (2) soak (3) drain (4) just steam water-sprinkling continuous steam (5) for the second time water-sprinkling steam (6) spreading for cooling (7) again and add that cylinder saccharification (9) adds compositions such as water by fermentation under the bent powder (8).The effect of liquid distiller's yeast mainly has been the hydrolysis that drives many materials of tea powder composition, co-fermentation (its concrete operations are identical with traditional distilled liquor production technique).
3. tea powder, liquid distiller's yeast (adding distiller's yeast) mixed fermentation.
The tea powder is after (wet heap) fermentation, when adding jar fermenter, add the above-mentioned liquid distiller's yeast that makes and be mixed into the fermentation of semi-solid state formula, purpose is starch concentration and the hydrolysis of liquid moisture content in some matter utilization distiller's yeast of tea powder, tea powder after solid-state (wet heap) fermentation is suitable for the moisture content of regulating in the distiller's yeast liquid simultaneously, mutually with the mode of regulating, formed the mixed fermentation of semi-solid state formula by this material naturally.For replenishing and remedy the dynamics that liquid distiller's yeast drives solid-state tea powder limit saccharification, limit fermentation, add distiller's yeast again, reach the shortening yeast phase, improve the purpose of liquor output rate.The distiller's yeast here is meant active dry yeast and saccharifying enzyme.
The condition of mixed fermentation: be suitable for indoor pithos fermentation, proving room requires and can the naturality sealing be incubated, again can be aeration-cooling with season naturally, the fermentation room temperature is most appropriate between 25 ℃-30 ℃, fermentation requires sanitation and hygiene, the pithos volume of fermentation usefulness should in order to avoid wine unstrained spirits, the gas expansion of mixed fermentation overflow, drain standby greater than more than 30% of the amount of fermentation that always feeds intake after cleaning with High Temperature Sterilization.
The specific operation process of mixed fermentation: tea powder and liquid distiller's yeast should drop into simultaneously, ratio is generally 100% (can increase and decrease flexibly according to different situations fully), both should stir after mixing, pH value in the resampling analysis mixing wine unstrained spirits, general is the effect that is suitable for saccharifying enzymic activity with the 4.5-5 scope, surpass more than 5.6 as the Ph value, can add an amount of organic acid (citric acid) to regulate acidity, ferment in order to the tea powder, also can lower the tea powder and increase the ratio of liquid distiller's yeast in mixed fermentation, with in the distiller's yeast liquid and the pH value in the mix-fermented wine unstrained spirits.Add saccharifying enzyme and high property dry yeast then, concrete consumption is in tea powder input amount, and saccharifying enzyme is 120U-150U/g, and active dry yeast is 0.8%-1%, and the concrete operation method of active dry yeast and saccharifying enzyme is according to products instruction.After cylinder is gone in medication, require to mix and stir well evenly, with plastic film sealing cylinder mouth, the general fermentation three, four days between 25 ℃-30 ℃ of fermentation room temperature is retortable.
4. solid state distillation
Moisture content in the semi-solid ferment wine unstrained spirits should be greater than the 20%-30% of all solid state fermented wine unstrained spirits, the all solid state distillation of this process using, should strengthen supplementary product consumption, regulating humidity in the wine unstrained spirits, be 1.5-2 times (tea powder water regain is more than 250%) that auxiliary material (should behind overheated steaming, wet heap enzymolysis hyperthermia drying) can replace other consumptions with pure tea powder.Adopting solid state distillation is the purpose of auxiliary material with the tea powder, according to the distillation General Principle, can make in the wine unstrained spirits and auxiliary material in tealeaves nutrition and tealeaves fragrance bring among the wine body in company with wine steam, improve and outstanding wine body quality.The concrete operations of solid state distillation are identical with the solid-state steaming method of traditional liquor.The groove unstrained spirits that goes out rice steamer after the distillation should in time dispel the heat, so that second takes turns down koji fermentation.