CN104431013A - Tartary buckwheat black tea and processing technology thereof - Google Patents

Abstract

The present invention relates to a tartary buckwheat black tea and a processing technology thereof. The tartary buckwheat black tea is made of the following materials (in parts by weight): 3-7 black tea, 3-7 red dates and 85-95 tartary buckwheat bran flour, and the processing technology comprises the following steps: (1) ultrafine grinding each of the raw materials; (2) mixing the raw materials evenly according to a ratio; (3) extruding and granulating the mixed raw materials; (4) pre-drying the granulated raw materials; (5) baking the dried raw materials; (6) cooling and packaging the baked raw materials. The processing technology has a reasonable raw material selection and formula, is scientific, and uses a temperature lower than the processing temperature in the prior art to conduct ultrafine grinding, pre-drying and baking processes, and thus the obtained tartary buckwheat black tea is advantageous in that less nutrition is lost, nutrients can be absorbed more easily, particles can be dissolved quickly, tea grains are edible, and the black tea is tasty. The active ingredients in the raw materials of the black tea cooperate with each other, and can not only complement each other in taste and aroma, but also work together to reduce fatigue, prevent aging, supplement blood, dispel cold, beautify features and reduce weight, and thus the tartary buckwheat black tea is especially suitable for women to consume.

Description

A kind of bitter buckwheat black tea and processing technology thereof

Technical field

The present invention relates to technical field of healthful tea, particularly relate to a kind of bitter buckwheat black tea and processing technology thereof.

Background technology

Duck wheat bitter, property is flat cold, beneficial strength, and continuous spirit, sharp knowledge, has the effect of the wide intestines stomach invigorating of sending down abnormally ascending.Bitter buckwheat tea take duck wheat as raw material, through the Instant Drinks product that the operations such as screening, baking process.Containing Flavonoid substances in bitter buckwheat tea, its main component is rutin.Rutin content accounts for 70 ~ 90% of general flavone, and rutin has another name called rutin, VP, has reduction capillary fragility, improves microcirculatory effect, is mainly used in diabetes, hypertensive supplemental treatment clinically.And rutin does not almost have in other cereal.Therefore, bitter buckwheat tea receives and welcomes widely.In addition, not only containing rich in protein, chlorophyll, fat, carbohydrate, crude fibre, mineral matter and trace element in bitter buckwheat tea, simultaneously also containing 18 kinds of natural amino acids, total content reaches 11.82%, and containing 9 kinds of aliphatic acid, child is had to the effect of enhancing development, the generation of coronary heart disease can be prevented adult.But at present, the producer producing bitter buckwheat tea is numerous, very different, and most of producer is all workshop-based production.Bitter buckwheat tea of the prior art is in manufacturing process, even if add the compositions such as matrimony vine, date or rose in raw material, it is enriched blood, antifatigue, anti-ageing, dispelling cold effect are still desirable not enough.

A kind of matrimony vine Tartary buckwheat tea disclosed in CN102934712A, be made up of black buckwheat powder 20 parts, matrimony vine 1 part, 1 part, date, bitter buckwheat tea is mainly crossed 150 ~ 200 mesh sieves and is ground into powder by its preparation method; Pulverizing after matrimony vine, date are dried 48 ~ 56h at 90 ~ 100 DEG C is 150 ~ 200 orders; Mixed by each powder, the water adding 7 parts stirs into wet-milling shape, saponification twice again; Grain forming is cut into after being squeezed into cylinder strip; 48 ~ 72h is dried again at 80 ~ 100 DEG C; To fry, tea machine is slow at 200 ~ 300 DEG C roasts slow stir-fry to frying out fragrance, last quality inspection, vacuum packaging.And for example a kind of rose black fagopyrum tataricum tea disclosed in CN102940084A, be made up of black buckwheat powder 50 parts, red rose 2 parts, 1.5 parts, peach kernel, 2 parts, date, bitter buckwheat tea is mainly crossed 150 ~ 200 mesh sieves and is ground into powder by its preparation method; Red rose, peach kernel, date being pulverized after the oven dry of 48 ~ 56h at 90 ~ 100 DEG C is 150 ~ 200 orders; Raw material is mixed, stirs, add the water that weight ratio is 17.5 parts, stir into wet-milling shape, saponification twice; After being squeezed into cylinder strip, be cut into graininess shaping; Dry, enter 80 ~ 100 DEG C of baking rooms and dry 48 ~ 72h; To fry tea machine heating 200 ~ 300 DEG C, fry the rolling of tea machine and stir-fry, the slow stir-fry of slow roasting is to frying out fragrance; Last quality inspection, vacuum packaging.The deficiency of above-mentioned two pieces scheme is that formula nutritional design is not ideal enough, and drying time is long, and it is too high to fry tea temperature, causes product nutrition to incur loss, it is enriched blood, antifatigue, anti-ageing, dispelling cold effect is undesirable.

Summary of the invention

In order to solve the problems of the technologies described above, the object of the present invention is to provide a kind of bitter buckwheat black tea and processing technology thereof, compensate for bitter buckwheat tea nutritive loss in prior art heavier, enriching blood, antifatigue, the problem that anti-ageing, dispelling cold effect is undesirable.

The invention provides following technical scheme:

A kind of bitter buckwheat black tea is made up of the raw material of following weight:

Black tea 3 ~ 7 weight portion, red date 3 ~ 7 weight portion, KUQIAOPI layer powder 85 ~ 95 weight portion.

Further, the weight of described raw material is:

Black tea 4 ~ 6 weight portion, red date 4 ~ 6 weight portion, KUQIAOPI layer powder 87.5 ~ 92.5 weight portion.

Further, the weight of described raw material is:

Black tea 5 weight portion, red date 5 weight portion, KUQIAOPI layer powder 90 weight portion.

A processing technology for bitter buckwheat black tea, is characterized in that, comprise the following steps:

(1) by each raw material ultramicro grinding respectively:

Get black tea, red date, dry respectively, ultramicro grinding, cross 300 ~ 600 mesh sieves, for subsequent use; Get KUQIAOPI layer powder again, ultramicro grinding, cross 300 ~ 600 mesh sieves, for subsequent use;

(2) mix by proportioning:

After by weight ratio the black tea Ultramicro-powder of step (1) gained and red date Ultramicro-powder being mixed with KUQIAOPI layer powder Ultramicro-powder, add the water that weight is raw material gross weight 30% ~ 35%, stir into softwood, the dry wet degree of softwood can be agglomerating tack-free and split for being spent with the light pressure energy of finger with hand-tight holding;

(3) extruding is granulated:

Step (2) gained softwood is put into extruding granulation machine and carry out extruding granulation, obtain pre-profiling particle;

(4) prebake:

Step (3) gained pre-profiling particle drying plant is carried out 60 ~ 90min with the temperature of 50 DEG C ~ 70 DEG C;

(5) bake and bank up with earth:

Adopt the temperature of 140 ~ 170 DEG C to bake and bank up with earth step (4) gained particle, the time of baking and banking up with earth is 30 ~ 50min, obtains bitter buckwheat black tea particle;

(6) cool, pack:

Treat that bitter buckwheat black tea particle cools, remove underproof particle, vacuum packaging.

The foundation of technical solution of the present invention is as follows:

The present invention's black tea composition used has multinomial health-care effect, and having refreshes oneself disappears the effects such as tired, replenishing body fluid and clearing away heat pathogen, diuresis, anti-inflammation and sterilization, removing toxic substances, nourishing the stomach, preventing decayed tooth, delaying aging, hypoglycemic, hypotensive, reducing blood lipid, anticancer, radioresistance, fat-reducing.Caffeine in black tea can stimulate cerebral cortex to carry out excitor nerve maincenter, facilitate refresh oneself, the power to think concentrates, and makes thinking react sharp, hypermnesia; Also can excited vascular system and heart, strengthening heartbeat, accelerates blood circulation in order to metabolism, promotes sweating and diuresis, accelerate old refuse matter in excretion lactic acid and other bodies, reach the effect of dispelling fatigue.As can be seen here, the antifatigue effect of black tea and dispelling cold function well.

The present invention's red date used is that fresh jujube obtains through dewatering drying, is medicine-food two-purpose product, and it is rich in the compositions such as protein, fat, carbohydrate, carrotene, B family vitamin, VC, VP and phosphorus, calcium, iron.Red-jujube flavor sweet warm in nature, return taste warp, having effect such as qi-restoratives benefit gas, nourishing blood and tranquilization, strengthening the spleen and stomach etc., can strengthen body immunity, is the good health nutrient of the patient such as weakness of the spleen and the stomach, insufficiency of vital energy and blood, lassitude, insomnia.The CAMP that red date is rich in is the required material of human energy metabolism, can strengthen muscular strength, dispelling fatigue, hemangiectasis, increase myocardial contractive power, improve myocardial nutrition, have good effect to prevention and cure of cardiovascular disease.The triterpene compound that red date contains and CAMP, have and stronger press down cancer, anti-allergic effects.As can be seen here, the enriching blood of red date, antifatigue, anti-ageing and dispelling cold effect is stronger.

The present invention's KUQIAOPI layer powder used adopts the bitter buckwheat epidermal area of high flavones content to be the duck wheat product that raw material is made, and meets the related request specified in domestic food secure enterprise standard Q/YZT0003S-2011.Several amino acids containing needed by human body in KUQIAOPI layer powder and calcium, phosphorus, iron, magnesium, selenium and other trace elements.Current clinical medicine is observed and is shown, tartary buckwheat powder and goods thereof have hypoglycemic, reducing blood lipid, strengthens the effect of body immunity, has auxiliary therapeutic action to patients such as diabetes, hypertension, high fat of blood, coronary heart disease, apoplexy.The KUQIAOPI layer powder quality made for raw material with bitter buckwheat epidermal area is better, general flavone and rutin content higher, more favourable to health.In addition, the dietary fiber in KUQIAOPI layer powder can promote the excretion of noxious material, reduces the T-CHOL of serum and the content of LDL-C.Also containing the two hydrogen-oxygen cis cinnamic acid Cosmetic Ingredient with the spot that discolors in KUQIAOPI layer powder, there is whitening effect.As can be seen here, effect such as hypoglycemic, lipopenicillinase, toxin expelling of KUQIAOPI layer powder is better, and the effect improving body immunity is stronger.

The present invention's KUQIAOPI layer powder raw material used is selected from being positioned at the ecosystem of peaceful regional more than the height above sea level 2000m of Guizhou Plateau prestige, free of contamination bitter buckwheat planting base, ensure that the quality of bitter buckwheat tea.

The present invention adopts black tea, red date and KUQIAOPI layer powder to be raw material, compatibility is reasonable, combine the multi-efficiency of black tea, red date and KUQIAOPI layer powder, its health care effect is not the simple superposition of the corresponding effect of each raw material, but after being processed by specific production technology, make the various beneficiating ingredients in raw material fully interact and combine, define have enrich blood, the bitter buckwheat black tea product of antifatigue, anti-ageing, dispelling cold effect.From the angle of the traditional five-element of motherland, five-color health preserving principle, the fire in the corresponding five-element of red food, the heart in corresponding the five internal organs, have lessen fatigue, anti-ageing, enrich blood, the function of dispelling cold.

In order to make those of ordinary skill in the art better understand the present invention, the applicant has carried out series of experiment research, to prove effect of the present invention:

Experimental example 1 recipe determination is tested

1 materials and methods

1.1 materials and reagent

Black tea: commercially available; Red date: Chinese medicine, commercially available; KUQIAOPI layer powder: commercially available, meets food security standard relevant in Q/YZT0003S-2011.

1.2 instrument and equipment

Electronic balance: Shanghai Jing Hai Instrument Ltd.;

GZX ~ 9070 type digital display air dry oven: Medical Equipment Plant of Shanghai Boxun Industrial Co., Ltd.;

The small-sized abrading type micronizer of HMB ~ 700S: Hao Yu development in science and technology Co., Ltd of BeiJing ZhongKe;

Permanent YK160 oscillating granulator advanced in years: Changzhou Heng Mai drying equipment Co., Ltd of Jiangsu Province.

1.3 experimental technique

1.3.1 experimental design

Black tea, red date to be dried respectively and ultramicro grinding be fineness is 300 order ~ 600 object Ultramicro-powders, be fineness by KUQIAOPI layer powder ultramicro grinding be again 300 order ~ 600 object Ultramicro-powders, to press processing method of the present invention after the proportioning mixing shown in table 1, make the bitter buckwheat black tea particle of different formulations, the weight of often wrapping bitter buckwheat black tea is 8g, brews 5 ~ 10min with the boiling water of 250mL80 ~ 90 DEG C.Get 8g black tea, red date and KUQIAOPI layer powder respectively to steep separately, observe that it is dark brown, taste its taste, its advantage of overall merit and shortcoming, determine experimental factor minimum zone.

The bitter buckwheat black tea formula of table 1

1.3.2 sensory evaluation

Adopt hedonic scoring system, evaluate the quality of bitter buckwheat black tea respectively with flavour, fragrance, soup look, outward appearance 4 angles, total score 100 points, filters out the mix proportion scheme that mouthfeel is pretty good.Sensory evaluation full marks standard is in table 2.

Table 2 sense organ is with evaluation full marks standard

The bitter buckwheat tea of high-quality, should be the KUQIAOPI layer powder selecting high-quality, and be made by good production technology.Give out be bitter buckwheat self buckwheat fragrance and with slight black malt fragrance, and the fragrance that the teas adding other medicine-food two-purpose material can be held with its nature of preparing burden.

1.4 results and analysis

1.4.1 black tea, red date, KUQIAOPI layer powder proportioning primary election result

When soaking with 8g black tea, red date or KUQIAOPI layer powder separately, black tea soak takes on a red color, and the fresh alcohol of flavour, gives off a strong fragrance, and tasty and refreshing property is good, but some bitter taste; Red date soak is faint yellow, and micro-sweet, mouthfeel is not ideal enough; KUQIAOPI layer powder soak is pistac, and have buckwheat fragrance, mildly bitter flavor is puckery.Based on the above results, the sweet taste of black tea and red date can be utilized to relax the bitter taste of KUQIAOPI layer powder, therefore subjective appreciation can be determined in the ratio range shown in table 1.

1.4.2 different ratios of raw materials is on the impact of bitter buckwheat black tea sensory evaluation

By 8 kinds of different ratio combinations that black tea, red date or KUQIAOPI layer powder obtain by primary dcreening operation, carry out sensory evaluation to the tea after soaking, result is as shown in table 3.

The proportioning of table 3 black tea, red date or KUQIAOPI layer powder is on the impact of bitter buckwheat black tea organoleptic quality

As shown in Table 3, when the proportioning of black tea, red date and KUQIAOPI layer powder is at 5:5:90, no matter bitter buckwheat black tea is from flavour, fragrance, Tang Se or outward appearance aspect, and score is all higher, and sensory evaluation total score is the highest.When the proportioning of KUQIAOPI layer powder and red date/black tea is less than 85:3 or is greater than 95:7, the score of flavour, fragrance, Tang Se and outward appearance aspect is lower, and sensory evaluation total score is lower.Therefore, the ratio range of black tea, red date and KUQIAOPI layer powder is in (3 ~ 7): (3 ~ 7): drink best results time (85 ~ 95).

Experimental example 2 health-care effect is tested

2.1 experimental technique

The people of the easy fatigue of random selecting 300, anaemia, obesity, pachylosis dimness and part climacteric women, of all ages, sex, as study subject, is divided into 3 groups at random, often organizes 100 people.Do following process respectively for each group:

Group 1: adopt a kind of matrimony vine Tartary buckwheat tea disclosed in CN102934712A, be used as daily tea-drinking and brew and drink, the trial period is 2 months, every day 1 time, each 8g;

Group 2: adopt a kind of rose black fagopyrum tataricum tea disclosed in CN102940084A, be used as daily tea-drinking and brew and drink, the trial period is 2 months, every day 1 time, each 8g;

Group 3: adopt the bitter buckwheat black tea that the embodiment of the present invention 1 is obtained, be used as daily tea-drinking and brew and drink, the trial period is 2 months, every day 1 time, each 8g.

After each group of trial period terminates, with substantially without improving, slightly improving, improve, be obviously improved as 4 grades of evaluation criterions, the healthy change of each group of study subject is taken statistics, by efficient=(slightly improve number of cases+improve number of cases+obviously improve number of cases)/total number of cases, the results are shown in Table 4.

2.2 experimental result

The healthy result of variations of table 4 study subject

Group	Substantially without improvement	Slightly improve	Improve	Obvious improvement	Efficient
						1	45	33	17	5	55%
2	42	34	18	6	58%
						3	13	38	31	18	87%

From above result, the healthy result of variations of study subject of group 3 is the most obvious, after study subject drinks the present invention, equal can feel improve before easy tired situation ratio is drunk a lot, the situation of mood agitation reduces, especially the tested crowd of climacteric women, majority feel that the immunity of health strengthens to some extent; After drinking the bitter buckwheat black tea of the present invention, tested crowd's state of mind of anaemia takes a turn for the better, and also has groups of people can feel that sensation that is dizzy, that be afraid of cold also disappears thereupon; After the people of pachylosis drinks the bitter buckwheat black tea of the present invention, the colour of skin is gradually good, and skin becomes smooth gradually; Fat tested drink the bitter buckwheat black tea of the present invention after, drain unobstructed, body weight does not increase, and alleviates to some extent on the contrary.Added up by above result and efficiently to find out, the present invention have certain to enrich blood, improve looks, lessen fatigue, anti-ageing, lose weight, the health-care effect of dispelling cold.Visible, the health-care effect of the bitter buckwheat black tea of the present invention is better than the similar bitter buckwheat tea of prior art Raw part (matrimony vine Tartary buckwheat tea disclosed in CN102934712A and CN102940084A disclosed in rose black fagopyrum tataricum tea).

Experimental example 3 technical study is tested

3.1 disintegrating process researchs

3.1.1 the disintegrating process research of black tea

3.1.1.1 test method

The black tea that random selecting quality is identical, is equally divided into 2 groups, does following process respectively:

Group 1: being pulverized by black tea tea pulverizer is 150-200 object black tea powder;

Group 2: adopt the inventive method, pulverizes by ultramicro grinding method after being dried by black tea and obtains 300 ~ 600 object black tea Ultramicro-powders.

Adopt tea sample sensory's method of the prior art and main physical and chemical composition detection method, analysis bank 1 and the black tea powder organized in 2, contrast, to select good disintegrating process.

3.1.1.2 result of the test and conclusion

Group 2(adopts ultramicro grinding) the black tea Ultramicro-powder nutritive loss that obtains is less, and fineness is high, good dispersion, and dissolution rate is fast; Its organoleptic quality, physical and chemical index etc. are all better than organizing 1(prior art) in black tea powder.

3.1.2 the disintegrating process research of red date

3.1.2.1 test method

The red date 3kg that random selecting quality is identical, is equally divided into 3 groups, often organizes 1kg, process according to following processing mode.Then conventionally in Analysis of Nutritive Composition method, first Analysis of Nutritive Composition mensuration is carried out to the red date in group 1, again the powder obtained in group 2 and group 3 is carried out nutrient component determining, the nutrient composition content parameter of red date in reference group 1 respectively, the nutritive loss rate of comparative group 2 and group 3.

Group 1: red date is analyzed with Analysis of Nutritive Composition method of the prior art, obtains nutrient composition content parameter;

Group 2: after red date is soaked stoning, through the oven dry of 48 ~ 56 hours in the baking room of 90 DEG C ~ 100 DEG C, and adopt medicinal herb grinder to pulverize, obtain 50 ~ 200 object red date powders;

Group 3: adopt the inventive method, directly pulverizes red date drying by ultramicro grinding method afterwards and obtains 300-600 object red date Ultramicro-powder.

3.1.2.2 result of the test and conclusion

The nutritive loss rate of the red date Ultramicro-powder in group 3 lower than the red date powder in group 2, and is formed closest to the red date nutrient composition in group 1.This is because 300 order-600 object red date Ultramicro-powders obtained by ultramicro grinding, nutritive loss is little, is easily absorbed by the body.Group 3 directly adopts superfine communication techniques to pulverize red date, can pulverize together with core, and avoiding red date in the prior art as organized 2 must pulverize and the inconvenience that brings in stoning.

3.1.3 the disintegrating process research of KUQIAOPI layer powder

3.1.3.1 test method

The KUQIAOPI layer powder that random selecting quality is identical, is equally divided into 2 groups, according to following manner process:

Group 1: KUQIAOPI layer powder is crossed 150 ~ 200 mesh sieves and is ground into KUQIAOPI layer fine powder;

Group 2: adopt the inventive method, directly being pulverized by KUQIAOPI layer powder is 300 ~ 600 object KUQIAOPI layer powder Ultramicro-powders;

Adopt tea sample sensory's method of the prior art and main physical and chemical composition detection method, analysis bank 1 and the KUQIAOPI layer powder organized in 2, contrast, to select good disintegrating process.

3.1.3.2 result of the test and conclusion

The organoleptic quality and physical and chemical index etc. of organizing 2 gained KUQIAOPI layer powder Ultramicro-powders are all better than group 1 gained KUQIAOPI layer powder and fine powder.This is because ultramicro grinding process KUQIAOPI layer powder can improve the active ingredient dissolution rate in KUQIAOPI layer, improves the flexibility (adaptability) of operation of KUQIAOPI layer powder.300 ~ 600 object KUQIAOPI layer powder Ultramicro-powders obtained by ultramicro grinding, uniformity is good, has good water-soluble, specific retention etc., is conducive to the quality improving bitter buckwheat black tea.

3.2 drying process researchs

3.2.1 test method

The extruded bitter buckwheat black tea particle that random selecting quality is identical, is equally divided into 2 groups, processes in such a way:

Group 1: the bitter buckwheat black tea particle of extruding pelletizing forming is put into 80 ~ 100 DEG C of baking rooms and dries 48 ~ 72h, then stir-fry with stir-fry tea machine heating 200 ~ 300 DEG C of rollings, the slow stir-fry of slow roasting is to frying out fragrance;

Group 2: the bitter buckwheat black tea particle drying plant of extruding pelletizing forming is carried out 60 ~ 90min with the temperature of 50 DEG C ~ 70 DEG C, then adopts the temperature of 140 ~ 170 DEG C to bake and bank up with earth, the time of baking and banking up with earth is 30 ~ 50min.

Adopt tea sample sensory's method of the prior art and main physical and chemical composition detection method, analysis bank 1 and the bitter buckwheat black tea particle organized in 2, contrast its rutin content, to select good drying process.

3.2.2 result of the test and conclusion

Organize 2 gained bitter buckwheat black tea particle in organoleptic quality and physical and chemical index, be all better than group 1 gained bitter buckwheat black tea particle, and rutin content is also higher than group 1 gained bitter buckwheat black tea particle.This is because low temperature prebaking technique, coordinates low temperature to bake and bank up with earth, can improve the rutin retention rate in KUQIAOPI layer powder Ultramicro-powder.Because in bitter buckwheat tea, topmost bioactivator is rutin, and rutin starts volatilization after heating-up temperature is more than 176 DEG C, the baking temperature that the present invention selects just in time avoids the volatilization of rutin, in turn ensure that the aridity of bitter buckwheat black tea particle simultaneously, therefore, the technique (present invention process) improving rutin retention rate is selection process.

Rutin contained by bitter buckwheat will be volatilized temperature 176 DEG C, so unsuitable high temperature process.And the present invention adopts suitable temperature carry out prebake and bake and bank up with earth, coordinate low temperature and ultramicro grinding technique fast, remain nutriment and the bioactive ingredients of bitter buckwheat, black tea and red date to greatest extent, ensure that the quality of bitter buckwheat black tea product.

Present invention incorporates preferred processing method, scientific and reasonable, process, it is salubrious that made bitter buckwheat black tea product has flavour, and the fragrant pleasant feature of tea, has the effect of health care.

Beneficial effect of the present invention: selection and reasonable raw material proportioning, craft science, adopt temperature lower than the ultramicro grinding processing of prior art processing temperature and prebake, bake and bank up with earth processing method, obtained bitter buckwheat black tea nutrition leak is few, and nutrition is more easily absorbed by the body, particle dissolution rate is fast, and tea grain can together eat, and mouthfeel is good; Active ingredient in raw material is worked in coordination, and not only mutually makes up on flavour and fragrance, can also jointly play lessen fatigue, anti-ageing, enrich blood, the effect of dispelling cold, be conducive to enriching blood, improve looks, anti-ageing, fat-reducing, successful, is especially applicable to women and eats.

Specific embodiment mode

In order to deepen the understanding of the present invention, below in conjunction with specific embodiment, the present invention is described in further detail, but do not form limiting the scope of the present invention.

Embodiment 1

Formula:

Black tea 3kg, red date 3kg, KUQIAOPI layer powder 85kg.

Technique:

(1) by each raw material ultramicro grinding respectively:

Get black tea, red date, dry respectively, ultramicro grinding, cross 300 mesh sieves, for subsequent use; Get KUQIAOPI layer powder again, ultramicro grinding, cross 300 mesh sieves, for subsequent use;

(2) mix by proportioning:

After by weight ratio the black tea Ultramicro-powder of step (1) gained and red date Ultramicro-powder being mixed with KUQIAOPI layer powder Ultramicro-powder, add the water that weight is raw material gross weight 30%, stir into softwood, the dry wet degree of softwood can be agglomerating tack-free and split for being spent with the light pressure energy of finger with hand-tight holding;

(3) extruding is granulated:

Step (2) gained softwood is put into extruding granulation machine and carry out extruding granulation, obtain pre-profiling particle;

(4) prebake:

Step (3) gained pre-profiling particle drying plant is carried out prebake 60min with the temperature of 50 DEG C;

(5) bake and bank up with earth:

Adopt the temperature of 140 DEG C to bake and bank up with earth step (4) gained particle, the time of baking and banking up with earth is 30min, obtains bitter buckwheat black tea particle;

(6) cool, pack:

Treat that bitter buckwheat black tea particle cools, remove underproof particle, vacuum packaging.Specification: 8g/ bag.

Embodiment 2

Formula:

Black tea 4kg, red date 4kg, KUQIAOPI layer powder 87.5kg.

Technique:

(1) by each raw material ultramicro grinding respectively:

Get black tea, red date, dry respectively, ultramicro grinding, cross 300 mesh sieves, for subsequent use; Get KUQIAOPI layer powder again, ultramicro grinding, cross 300 mesh sieves, for subsequent use;

(2) mix by proportioning:

After by weight ratio the black tea Ultramicro-powder of step (1) gained and red date Ultramicro-powder being mixed with KUQIAOPI layer powder Ultramicro-powder, add the water that weight is raw material gross weight 31.25%, stir into softwood, the dry wet degree of softwood can be agglomerating tack-free and split for being spent with the light pressure energy of finger with hand-tight holding;

(3) extruding is granulated:

Step (2) gained softwood is put into extruding granulation machine and carry out extruding granulation, obtain pre-profiling particle;

(4) prebake:

Step (3) gained pre-profiling particle drying plant is carried out prebake 70min with the temperature of 55 DEG C;

(5) bake and bank up with earth:

Adopt the temperature of 140 DEG C to bake and bank up with earth step (4) gained particle, the time of baking and banking up with earth is 30min, obtains bitter buckwheat black tea particle;

(6) cool, pack:

After adopting high-temperature sterilization baking oven to carry out sterilizing 12.5s with 132.5 DEG C bitter buckwheat black tea particle, cooling, removes underproof particle, vacuum packaging.

Embodiment 3

Formula:

Black tea 5kg, red date 5kg, KUQIAOPI layer powder 90kg.

Technique:

(1) by each raw material ultramicro grinding respectively:

Get black tea, red date, dry respectively, ultramicro grinding, cross 400 mesh sieves, for subsequent use; Get KUQIAOPI layer powder again, ultramicro grinding, cross 400 mesh sieves, for subsequent use;

(2) mix by proportioning:

After by weight ratio the black tea Ultramicro-powder of step (1) gained and red date Ultramicro-powder being mixed with KUQIAOPI layer powder Ultramicro-powder, add the water that weight is raw material gross weight 32.5%, stir into softwood, the dry wet degree of softwood can be agglomerating tack-free and split for being spent with the light pressure energy of finger with hand-tight holding;

(3) extruding is granulated:

Step (2) gained softwood is put into extruding granulation machine and carry out extruding granulation, obtain pre-profiling particle;

(4) prebake:

Step (3) gained pre-profiling particle drying plant is carried out prebake 80min with the temperature of 60 DEG C;

(5) bake and bank up with earth:

Adopt the temperature of 150 DEG C to bake and bank up with earth step (4) gained particle, the time of baking and banking up with earth is 40min, obtains bitter buckwheat black tea particle;

(6) cool, pack:

After adopting high-temperature sterilization baking oven to carry out sterilizing 15s with 135 DEG C bitter buckwheat black tea particle, cooling, removes underproof particle, vacuum packaging.

Embodiment 4

Formula:

Black tea 6kg, red date 6kg, KUQIAOPI layer powder 92.5kg.

Technique:

(1) by each raw material ultramicro grinding respectively:

Get black tea, red date, dry respectively, ultramicro grinding, cross 500 mesh sieves, for subsequent use; Get KUQIAOPI layer powder again, ultramicro grinding, cross 500 mesh sieves, for subsequent use;

(2) mix by proportioning:

After by weight ratio the black tea Ultramicro-powder of step (1) gained and red date Ultramicro-powder being mixed with KUQIAOPI layer powder Ultramicro-powder, add the water that weight is raw material gross weight 33.75%, stir into softwood, the dry wet degree of softwood can be agglomerating tack-free and split for being spent with the light pressure energy of finger with hand-tight holding;

(3) extruding is granulated:

Step (2) gained softwood is put into extruding granulation machine and carry out extruding granulation, obtain pre-profiling particle;

(4) prebake:

Step (3) gained pre-profiling particle drying plant is carried out prebake 90min with the temperature of 65 DEG C;

(5) bake and bank up with earth:

Adopt the temperature of 160 DEG C to bake and bank up with earth step (4) gained particle, the time of baking and banking up with earth is 40min, obtains bitter buckwheat black tea particle;

(6) cool, pack:

After adopting high-temperature sterilization baking oven to carry out sterilizing 17.5s with 137.5 DEG C bitter buckwheat black tea particle, cooling, removes underproof particle, vacuum packaging.

Embodiment 5

Formula:

Black tea 7kg, red date 7kg, KUQIAOPI layer powder 95kg.

(1) by each raw material ultramicro grinding respectively:

Get black tea, red date, dry respectively, ultramicro grinding, cross 600 mesh sieves, for subsequent use; Get KUQIAOPI layer powder again, ultramicro grinding, cross 600 mesh sieves, for subsequent use;

(2) mix by proportioning:

After by weight ratio the black tea Ultramicro-powder of step (1) gained and red date Ultramicro-powder being mixed with KUQIAOPI layer powder Ultramicro-powder, add the water that weight is raw material gross weight 35%, stir into softwood, the dry wet degree of softwood can be agglomerating tack-free and split for being spent with the light pressure energy of finger with hand-tight holding;

(3) extruding is granulated:

Step (2) gained softwood is put into extruding granulation machine and carry out extruding granulation, obtain pre-profiling particle;

(4) prebake:

Step (3) gained pre-profiling particle drying plant is carried out prebake 90min with the temperature of 70 DEG C;

(5) bake and bank up with earth:

Adopt the temperature of 170 DEG C to bake and bank up with earth step (4) gained particle, the time of baking and banking up with earth is 50min, obtains bitter buckwheat black tea particle;

(6) cool, pack:

After adopting high-temperature sterilization baking oven to carry out sterilizing 20s with 140 DEG C bitter buckwheat black tea particle, cooling, removes underproof particle, vacuum packaging.

Embodiment 6 ~ 20

Adopt the technique with the embodiment of the present invention 3, carry out the making of bitter buckwheat black tea with the raw material of proportioning shown in table 5, obtain the bitter buckwheat black tea of embodiment 6 ~ 20.

Table 5 bitter buckwheat black tea raw material proportioning

Embodiment	Black tea/kg	Red date/kg	KUQIAOPI layer powder/kg
				6	4	3	85
7	4	4	86
				8	4	5	87
9	5	6	88
				10	5	7	89
11	5	3	90
				12	6	4	91
13	6	5	92
				14	6	6	93
15	7	7	94
				16	7	3	95
17	7	4	89
				18	3	5	90
19	3	6	91
				20	3	7	92

Claims (4)

1. a bitter buckwheat black tea, is characterized in that, this bitter buckwheat black tea is made up of the raw material of following weight:

Black tea 3 ~ 7 weight portion, red date 3 ~ 7 weight portion, KUQIAOPI layer powder 85 ~ 95 weight portion.

2. the bitter buckwheat black tea of one according to claim 1, is characterized in that, the weight of described raw material is:

Black tea 4 ~ 6 weight portion, red date 4 ~ 6 weight portion, KUQIAOPI layer powder 87.5 ~ 92.5 weight portion.

3. the bitter buckwheat black tea of one according to claim 1, is characterized in that, the weight of described raw material is:

Black tea 5 weight portion, red date 5 weight portion, KUQIAOPI layer powder 90 weight portion.

4. the processing technology of bitter buckwheat black tea according to claim 1, is characterized in that, comprise the following steps:

(1) by each raw material ultramicro grinding respectively:

Get black tea, red date, dry respectively, ultramicro grinding, cross 300 ~ 600 mesh sieves, for subsequent use; Get KUQIAOPI layer powder again, ultramicro grinding, cross 300 ~ 600 mesh sieves, for subsequent use;

(2) mix by proportioning:

After by weight ratio the black tea Ultramicro-powder of step (1) gained and red date Ultramicro-powder being mixed with KUQIAOPI layer powder Ultramicro-powder, add the water that weight is raw material gross weight 30% ~ 35%, stir into softwood, the dry wet degree of softwood can be agglomerating tack-free and split for being spent with the light pressure energy of finger with hand-tight holding;

(3) extruding is granulated:

Step (2) gained softwood is put into extruding granulation machine and carry out extruding granulation, obtain pre-profiling particle;

(4) prebake:

Step (3) gained pre-profiling particle drying plant is carried out 60 ~ 90min with the temperature of 50 DEG C ~ 70 DEG C;

(5) bake and bank up with earth:

Adopt the temperature of 140 ~ 170 DEG C to bake and bank up with earth step (4) gained particle, the time of baking and banking up with earth is 30 ~ 50min, obtains bitter buckwheat black tea particle;

(6) cool, pack:

Treat that bitter buckwheat black tea particle cools, remove underproof particle, vacuum packaging.