CN101946834A - Method for producing organic oolong tea - Google Patents

Abstract

The invention provides a method for producing organic oolong tea, which can reach the effect that the oolong tea is tight and heavy in appearance, looks like the head of a dragonfly, is sandy green and juicy in color and luster, is yellow-green and bright in liquor color, has dense and long-lasting scent, has potpourri, and is mellow in taste. The technical scheme of the method comprises the following steps: (1) taking fresh leaves in an organic tea garden as raw materials; (2) spreading: spreading the fresh leaves on bamboo mats, wherein the spreading thickness is 5-7cm, and the spreading time is 12-14 times; and ensuring shady and cool as well as ventilated and dry environment; (3) withering: evenly and thinly spreading the fresh leaves which are spread on water sieves or the bamboo mats, controlling the room temperature to be 30-50 DEG C, wherein the relative temperature is 50-55%, the leaf-spreading thickness is 5-7cm, and the time is 2-3 hours; and turning for once or twice in the withering process; (4) shaking: shaking by a shaking machine; (5) drying: using an air conditioner to keep the constant temperature to be 22-25 DEG C for 6-10 hours; (6) de-enzyming; (7) rolling: rolling for 30-32 times on a rolling machine; and (8) drying: baking until the tea is twisted to powder by hands, and when the moisture content of the tea is less than 5%, discharging and spreading for cooling.

Description

The production method of organic oolong tea

Technical field

The present invention relates to the production method of oolong tea.

Background technology

Oolong tea has another name called blue or green tea, is one of China's six big teas, the generally acknowledged Fujian of originating from the earliest of tea circle.Oolong tea has unique natural fragrance of a flower, and mellow tasty and refreshing flavour, and many-sided health-care effect more and more are subjected to liking of people.Oolong tea is confirmed by Science Institute to nutritious value of human body and health-care efficacy, is a kind of well behaved conditioning agent.Along with the development of modern society, people turn to " cuisines type " and " health " to change to the requirement of food gradually from " simply having adequate food and clothing ".Simultaneously, judging oolong tea is a kind of elegance enjoyment of fashion, suits the social development demand, and development in nearly 20 years is swift and violent, has now exported more than 80 countries and regions, the whole world.

Green tea and oolong tea are by producing with a kind of tea tree.Maximum difference has been not this process by fermentation.Because the catechin in the tealeaves can mutually combine along with the rising of fermentation temperature, cause darkening of tea, but therefore the astringent taste of tea can reduce also.This catechin formed composition that mutually combines is exactly the Polyphenols of oolong tea.Polyphenols and the catechin with antioxidation can both influence the activate of various ferment in our body.The catechin that is contained in the tealeaves nearly half can be converted into the Polyphenols of oolong tea.Therefore, under the double action of the antioxidation of catechin and oolong tea Polyphenols, oolong tea has just shown the unexistent various effects of green tea.Its surprising effect mainly show as stop tartar, prevent to decay tooth, eliminate harm beauty treatment and healthy active oxygen, can improve allergic, promoting digestion greasy, reduce fat, antitumor, pre-anti-aging effect, in addition, antitumor in addition, as to improve lymphocyte and NK activation, and effects such as booster immunization function, pre-anti-aging.

Summary of the invention

The purpose of this invention is to provide the production method that the bright leaf of the common organic tea garden of a kind of usefulness is made oolong tea, reach profile tightly tie heavy real, dragonfly Yan head, color and luster green emerald Shang Run, soup look yellowish green bright, aloof from politics and material pursuits lasting, the wounded in the battle perfume (or spice) of fragrance, effect that flavour is mellow arranged.

For this reason, technical scheme of the present invention is: the production method of organic oolong tea, and concrete steps are:

(1). the bright leaf with organic tea garden is a raw material;

(2). the stand is blue or green: bright leaf spreads on bamboo mat, spreads thickness 5-7cm, gently turns over once about every 1h, spreads time 12-14 hour, guarantees environment cool place, aeration-drying;

(3). wither: will spread out that bright leaf behind the green grass or young crops is evenly thin to be spread out in water sieve or above the bamboo mat, to utilize hot-air to improve room temperature, room temperature is controlled between 30 ℃-50 ℃, relative temperature is 50%-55%, leaf-spreading thickness is 5-7cm, and the time is 2-3 hour, and ploughing in green is 1-2 time in the process of withering;

(4). shake green grass or young crops: adopt vibration machine to shake green grass or young crops, the good bright leaf that manually will wither is put into machine, each input amount 50-80kg, 4-5min is shaken in the start rotation, and rotating speed is 25～30 commentaries on classics/min;

(5). air blue: 22～25 ℃ of air-conditioning constant temperature, time 6-10 hour;

(6). complete: adopt green-keeping machine to complete, 220-230 ℃ of high temperature frying 3 to 5 minutes, fully the activity of destructive enzyme goes out the machine airing then rapidly;

(7). rolling: rolling is 30-32 time on the rolling machine;

(8). drying: cure on dryer, the dryer temperature is 100-130 ℃, cures 5-8min, behind the spreading for cooling moisture regain 15-20min, repeats to cure once spreading for cooling more again; Put into the dried Titian of fragrance extracting machine foot then, put into 10-20kg at every turn, 130 ± 5 ℃ of intake air temperatures cure 20-25min, dry by the fire to twist with the fingers the tea grain to hand and become powder, and its water content is lower than at 5% o'clock, following machine spreading for cooling.

Beneficial effect:

1. utilize common bright leaf to make oolong tea;

2. adopt with the raw material of the bright leaf of organic tea garden, do not have residues of pesticides as organic oolong tea;

3. compare with traditional oolong teas, it is outside the organic tea that the present invention adopts fresh leaf, has also done big improvement on manufacture craft: the one, increase bright leaf stand young worker's skill, and reduce bright leaf temp, more green grass gas scatters and disappears; The 2nd, do blue or green air-conditioning temperature control dehumidifier and the time lengthening of adopting, fully oxidative fermentation strengthens flavour and improves fragrance.The 3rd, the rolling number of times increases 2-4 time than conventional method, and product particle is compact more, even, and it is more abundant to ferment, and flavour is pure and mild; The 4th, adopt the stage drying way, increase the spreading for cooling program midway, be beneficial to raising fragrance, improve quality.

The specific embodiment

Below in conjunction with flow chart, the present invention is further described:

1, the technological process of organic oolong tea:

Bright leaf → stand green grass or young crops → the green grass or young crops that withers → shake → air-conditioning air blue → complete → rolling → drying → packing.

2, the production method of organic oolong tea:

(1). the bright leaf with organic tea garden is a raw material: leaf picking requires to keep complete, the fresh and sanitation and hygiene of bright leaf, and bar is tender, and length is moderate, does not carry different foreign material secretly;

(2). the stand is blue or green:

The bright leaf that enters the workshop spreads on the bamboo mat of clean, the free from extraneous odour of special use, spreads thickness 5-7cm, gently turns over once about every 1h.Spread 12-14 hour; Environment is wanted sanitation and hygiene, cool place, aeration-drying;

(3). wither:

Wither and just evaporate bright leaf central part and divide moisture, distribute green grass gas, promote the chemical change of composition in the activation of enzyme and the leaf, for doing the blue or green good condition of creating.

Even the approaching of bright leaf is spread out in water sieve or (0.5kg/m above the bamboo mat ²About), utilize hot-air to improve room temperature, room temperature should be grasped between 30 ℃-50 ℃, and relative temperature 50%-55% regulates the room temperature, and leaf-spreading thickness is 5-7cm, and the time is 2-3 hour, ploughing in green 1-2 time (grasping flexibly by water content) in the process of withering;

(4). shake green grass or young crops:

Shaking blue or green is exactly to make the slight mutually friction of bright leaf by the machinery rotation, and the limb edge is evenly impaired, and small amount of moisture is oozed out the surface in leaf and the bar, and further softening, removes surface moisture by artificial dehumidifier.

Adopt 6WYQ-82 type oolong tea vibration machine to shake green grass or young crops, the good bright leaf that manually will wither is put into machine, each input amount 50-80kg, and 4-5min (according to the bright suitable control time of leaf amount) is shaken in the start rotation, and rotating speed is 25～30 commentaries on classics/min.

(5). the air-conditioning air blue:

To spread in the square bamboo sieve of 60 * 60cm size through shaking blue or green bright leaf then, place indoor air-conditioning dehumidifier airtight, health, spread about thickness 3cm, but the layering of bamboo sieve overlays on the autocratic shelf, bamboo sieve between the upper and lower every about 20cm, 8-12 hour air blue time;

(6). complete:

The purpose that completes is to utilize high temperature to destroy the activity of doing enzyme in leafiness, prevents the enzymatic oxidation of Polyphenols, further distributes moisture green grass gas, and performance fragrance makes food value of leaf deliquescing, is convenient to rolling;

Adopt 6CWS-110 type Oolong tea maker to complete, temperature evenly reaches 230 ℃ in the green-keeping machine cylinder, and rotating speed is 34-37 commentaries on classics/min, manually evenly drop into bright leaf in the machine barrel that completes, each 10-15kg that drops into, bright leaf completes in tube and lasts 5-6min, goes out the machine airing then rapidly;

(7). rolling:

The rolling purpose is further to destroy leaf cell, extrudes tea juice, with solid profile that forms organic oolong tea and the flavour of promoting oolong tea;

With cloth water-removing leaves is bundled into group, every 15kg one bag is placed on middle kneadding sth. made by twisting 2min on the 6CWSR-80 type Oolong tea messaging machine, dismisses sieve and goes to broken end, and spreading for cooling 3-5min repeats rolling totally 32 times.Look during this time and rub out the moisture situation, put into green-keeping machine and overdo under 180 ℃ temperature 3 times, transpiring moisture is in order to avoid inter-adhesive.This moment, the green-keeping machine rotary speed was 50 commentaries on classics/min, and the time of overdoing is 2min at every turn;

(8). drying:

Stage drying cures Titian, keeps original flavor;

Cure at 6CWH-9 type oolong tea dryer, the dryer temperature is 100-130 ℃, and it is 2cm that tealeaves advances machine thickness, cures 5-8min, behind the spreading for cooling moisture regain 15-20min, repeats to cure once spreading for cooling more again; Put into the dried Titian of 6CH7/6.0 oolong tea fragrance extracting machine foot then.Put into 10-20kg at every turn, 130 ℃ ± 5 ℃ of intake air temperatures, rotating speed is 60 commentaries on classics/min, cures 20-25min, dries by the fire to twist with the fingers the tea grain to hand and become powder, its water content is lower than at 5% o'clock, following machine spreading for cooling;

(9). packing: finished product is used the plastic bag vacuum packaging after the qualified classification of quality inspection, and interior placement tealeaves special drying agent adds carton package and sticks on the organic tea sign, is placed in the tealeaves freezer with packed in cases and preserves, and temperature is controlled at below 5 ℃.

Claims (1)

1. the production method of organic oolong tea, concrete steps are:

(1). the bright leaf with organic tea garden is a raw material;

(2). the stand is blue or green: bright leaf spreads on bamboo mat, spreads thickness 5-7cm, gently turns over once about every 1h, spreads time 12-14 hour, guarantees environment cool place, aeration-drying;

(3). wither: will spread out that bright leaf behind the green grass or young crops is evenly thin to be spread out in water sieve or above the bamboo mat, to utilize hot-air to improve room temperature, room temperature is controlled between 30 ℃-50 ℃, relative temperature is 50%-55%, leaf-spreading thickness is 5-7cm, and the time is 2-3 hour, and ploughing in green is 1-2 time in the process of withering;

(4). shake green grass or young crops: adopt vibration machine to shake green grass or young crops, the good bright leaf that manually will wither is put into machine, each input amount 50-80kg, 4-5min is shaken in the start rotation, and rotating speed is 25～30 commentaries on classics/min;

(5). air blue: 22～25 ℃ of air-conditioning constant temperature, time 6-10 hour;

(6). complete: adopt green-keeping machine to complete, 220-230 ℃ of high temperature frying 3 to 5 minutes, fully the activity of destructive enzyme goes out the machine airing then rapidly;

(7). rolling: rolling is 30-32 time on the rolling machine;

(8). drying: cure on dryer, the dryer temperature is 100-130 ℃, cures 5-8min, behind the spreading for cooling moisture regain 15-20min, repeats to cure once spreading for cooling more again; Put into the dried Titian of fragrance extracting machine foot then, put into 10-20kg at every turn, 130 ± 5 ℃ of intake air temperatures cure 20-25min, dry by the fire to twist with the fingers the tea grain to hand and become powder, and its water content is lower than at 5% o'clock, following machine spreading for cooling.