A kind of jasmine tea new process for processing
Technical field
The invention belongs to jasmine tea basement system technology, the object of the invention is to improve quality of flower tea, reduces basement and makes this.
Background technology
Jasmine tea is the traditional consumption beverage of China, liked by the consumer.From the sixties China carry out the jasmine tea scenting process carried out broad scale research since, the jasmine tea scenting process has bigger development.Last century the nineties, the Jasmine flavoring essence is widely applied in jasmine tea basement system, but because of the fragrance of a flower not " to the marrow ", and is difficultly accepted by the consumer.
Traditional jasmine tea basement system technology, be that the tea base is dried to water content below 5%, again with tea base and the logical flower of Jasmine amalgamation basement system, afterwards tea base and Jasmine screening are opened (promptly rocketing), again with tea base drying, defectives such as this jasmine tea processing technology exists distributing cotton quantity big, and finished product jasmine tea fragrance is " to the marrow " not, and Jasmine fragrance ingredient utilization rate is low.
Summary of the invention
The object of the present invention is to provide a kind of jasmine tea basement system method that can fully improve jasmine fresh flower utilization rate.
The present invention relates to a kind of jasmine tea basement system method, it comprise get the raw materials ready, the processing of tea base, camellia amalgamation, logical flower, dry, rocket, the jacquard weave step, it is characterized in that, the water content of tea base is controlled in 8-12 (weight) the % scope before the camellia amalgamation, and dry run is that the tea base after logical the spending is dry with the mixture of jasmine fresh flower.
Dry run is at first the mixture of tea base and jasmine fresh flower to be put into bottle formula to fry the tea machine, speed with 3-5 ℃/min is warmed up to 95-100 ℃ again, is incubated 8-10 minute, is cooled to 70 ℃ afterwards gradually, heat preservation and dryness is 7-8 (weight) % until tea base water content.
In addition, the invention still further relates to a kind of jasmine tea that utilizes jasmine tea basement system method preparation of the present invention.
A kind of jasmine tea basement system method of the present invention is characterized in that this method may further comprise the steps:
(1) gets the raw materials ready
Described getting the raw materials ready comprises the preparation of tea base and jasmine fresh flower;
Being prepared as of described tea base, selecting the fresh leaves of tea plant of simple bud, a bud one leaf, two leaves and a bud, a bud three leaves is raw material, described fresh leaves of tea plant is aciculiform, flat, curl shape, camber, ball-point pen type, after described fresh leaves of tea plant process sub-sieve, the removal of impurities, obtains the tea base of basement system jasmine tea;
Be no more than 10 hours standing time after described jasmine fresh flower was plucked;
(2) the tea base is handled
Measure tea base water content, control tea base water content is in 8-12 (weight) % scope;
(3) camellia amalgamation
Getting the middle water content of step (2) is tea base 100 weight portions of 8-12 (weight) %, jasmine fresh flower 30 weight portions of getting ready in the step (1), elder generation's lay one deck tea base layer, even lay one deck jasmine fresh flower layer on tea base layer again, lay so repeatedly forms the amalgamation heap of tea base layer and jasmine fresh flower layer, tea base layer and jasmine fresh flower layer 5-7 layer altogether in the described amalgamation heap, the bottom and the superiors of described amalgamation heap are tea base layer, and high 50-60cm is piled in described amalgamation;
(4) logical flower
When the temperature of jasmine fresh flower layer in the described amalgamation heap arrives 50 ℃, lead to flower, described logical flower is that tea base in the step (3) and jasmine fresh flower are mixed, and scatter in the shop, form hybrid reactor, the heap height of described hybrid reactor is reduced to 15cm, lower the temperature, when temperature is reduced to 25-35 ℃, mixed uniformly tea base and jasmine fresh flower are piled the high hybrid reactor into 50-60cm again; The process of lowering the temperature, piling again intensification of being loose in above-mentioned shop repeats 2-3 time;
(5) drying
Through after 10-16 hour the basement system, described 10-16 hour basement system time is the total time of camellia amalgamation and logical flower, the tea base after using bottle formula stir-fry tea machine to logical spending in the described step (4) and the mixture of jasmine fresh flower carry out drying, described dry run is at first the mixture of tea base and jasmine fresh flower to be put into bottle formula to fry the tea machine, speed with 3-5 ℃/min is warmed up to 95-100 ℃ again, be incubated 8-10 minute, be cooled to 70 ℃ afterwards gradually, at 70 ℃ of heat preservation and drynesses, be 7-8 (weight) % until tea base water content;
(6) rocket
Dried tea base in the step (5) is separated by screen-dividing machine with the jasmine fresh flower;
(7) jacquard weave
Other gets the jasmine fresh flower, be no more than 10 hours the standing time after described jasmine fresh flower is won, with the evenly mixing once more of the tea base after separating in described jasmine fresh flower and the described step (6), the tea base after separating in the described step (6) and the weight ratio of described jasmine fresh flower are 100: 6-8, mix, banked up 10-16 hour, and afterwards the tea base was separated with the jasmine fresh flower.
Preferably, described step (4) back also has basement step again, described multiple basement step comprise rocket, camellia amalgamation, logical flower.
The water content of tea base is 10-12 (weight) % in preferred steps (3) the camellia amalgamation.
The preferred basement system time is 12-14 hour.
When getting the raw materials ready, can select according to the Green Tea Processing explained hereafter, and through the green tea products all kinds of, at different levels after refining.Comprising various is aciculiform, flat, curl shape, camber, the ball-point pen type green tea that raw material is produced with simple bud, a bud one leaf, two leaves and a bud, a bud three leaves, the jasmine fresh flower among the present invention, preferred semi-open jasmine fresh flower.
When the tea base is handled, it is very important that the water content of tea base is controlled at 8-12 (weight) %, jasmine tea was before basement system in the past, all be that the tea base is dried water content is 3-5 (weight) %, and the application's applicant is through long-term specially the grinding and test to the tealeaves adsorption capacity, the ability of discovery tealeaves absorption fragrance ingredient improves with the increase of tea base water content, with water content is that tea base and the jasmine tea of 8-12 (weight) % carry out basement system, not only can simplify technological process, reduce production costs, the fragrance ingredient of tealeaves absorption is increased greatly, this discovery has not only overcome the water content of tealeaves in the prior art and has been required to be the prejudice that 3-5 (weight) % can basement system jasmine tea, the fragrance of tealeaves is increased greatly, produced unforeseeable technique effect.When the tea base is handled, if moisture deficit 8 (weight) %, add water treatment, make bad water content of tea reach 8 (weight) more than the %, but be no more than 12 (weight) %.Water content reaches more than 12 (weight) %, and the tea base is cured processing, and tea base water content is reduced in 12 (weight) %.In addition, select the water content among the present invention, before the Jasmine basement system, no longer with the bad water content of drying 3-5 (weight) % of tea, and the tea base and the jasmine fresh flower that directly water content are reached below 12 (weight) % carry out basement systems, make this thereby reduced basement.
The selection of basement system time has considerable influence to the fragrance of jasmine tea, and after 10 hours basement system, the tea base has suctioned the aromatic molecules of Jasmine, and water content also increases simultaneously.The applicant is through studying discovery for a long period of time, if the basement system time was less than 10 hours, the fragrance of Jasmine can not fully discharge, the fragrance of jasmine tea product also can obviously reduce, not significantly raising of jasmine tea fragrance afterwards that the basement system time surpasses 10 hours, surpass 16 hours, the jasmine fresh flower can produce peculiar smell, reduces tea leaf quality.Therefore, the preferred basement system time is 10-16 hour, more preferably 12-14 hour.
Dry purpose is to reach the fragrance of a flower purpose of " to the marrow " in the water content that reduces tealeaves.All be that tea base and Jasmine after separating are carried out drying in the prior art, the applicant is through studying discovery for a long period of time, in dry run, because the raising of temperature, therefore increased the fragrance ingredient of tea base absorption Jasmine, therefore, tea base and Jasmine are carried out drying jointly, can make final products fragrance more.
The present invention has following advantage:
(1) the present invention overcome among traditional jasmine tea preparation method the tea base dried to water content be 5 (weight) below the % after, carry out basement system again, with water content is that tea base and the jasmine tea of 8-12 (weight) % carry out basement system, not only simplified technological process, reduce production costs, the fragrance ingredient of tealeaves absorption is increased greatly;
(2) the present invention has overcome in traditional tea-manufacturing technology, with the technology prejudice of tea base with dry again tea base after the jasmine fresh flower separates, in dry run that the tea base is dry with the mixture of Jasmine, make the further amalgamation when drying of Jasmine and tea base, the utilization rate that improves Jasmine is to the marrow aromatic with the fragrance of a flower that becomes to sample tea.In addition, another advantage of the present invention is in drying steps to adopt the drying process of special slow intensification and segmentation insulation, helps improving the utilization rate of Jasmine more and the tea that becomes to sample tea is fragrant and the fragrance of a flower combines together formation pure and mild flavour, i.e. " to the marrow ".
Description of drawings
Fig. 1 is a jasmine tea mixing stir-frying-technology flow chart.
The specific embodiment
Below by embodiment the present invention is described, and the jasmine tea for preparing in the embodiment of the invention is carried out the sensory review according to GB/T 18797-2002 " tealeaves sensory review chamber primary condition ", NY/T787-2004 " tealeaves sensory review universal method ", GB/T 14487-93 " tealeaves sensory review term ".
Embodiment 1
(1) gets the raw materials ready
Described getting the raw materials ready comprises the preparation of tea base and jasmine fresh flower;
Being prepared as of described tea base, selecting the fresh leaves of tea plant of simple bud is raw material, described fresh leaves of tea plant is a curl shape, after described fresh leaves of tea plant process sub-sieve, the removal of impurities, obtains the tea base of basement system jasmine tea;
Standing time was less than 10 hours after described jasmine fresh flower was plucked;
(2) the tea base is handled
Measure the tea base water content after making with extra care, control its water content in 10 (weight) % scope;
(3) camellia amalgamation
Getting the middle water content of step (2) is tea base 100 weight portions of 10 (weight) %, jasmine fresh flower 30 weight portions of getting ready in the step (1), elder generation's lay one deck tea base layer, even lay one deck jasmine fresh flower layer on tea base layer again, lay so repeatedly, totally 5 layers on tea base layer and jasmine fresh flower layer, last layer is a tea base layer, form the amalgamation heap of tea base layer and jasmine fresh flower layer, high 50cm is piled in described amalgamation, and described amalgamation heap is trapezoidal;
(4) logical flower
When the temperature of jasmine fresh flower layer in the described amalgamation heap arrives 50 ℃, lead to flower, described logical flower is that tea base in the step (3) and jasmine fresh flower are mixed, and scatter in the shop, form hybrid reactor, the heap height of described hybrid reactor is reduced to 15cm, lower the temperature, when temperature is reduced to 30 ℃, mixed uniformly tea base and jasmine fresh flower are piled the high trapezoidal shape hybrid reactor into 50cm again; The process of lowering the temperature, piling again intensification of being loose in above-mentioned shop repeats 2 times;
(5) drying
After 14 hours basement system, the described 14 hours basement system time is the total time of camellia amalgamation and logical flower, the tea base after using bottle formula stir-fry tea machine to logical spending in the described step (4) and the mixture of jasmine fresh flower carry out drying, described drying is at first the mixture of tea base and jasmine fresh flower to be put into bottle formula to fry the tea machine, speed with 4 ℃/min is warmed up to 95 ℃ again, is incubated 10 minutes, is cooled to 70 ℃ afterwards gradually, heat preservation and dryness is 7 (weight) % until tea base water content;
(6) rocket
Dried tea base in the step (5) is separated by screen-dividing machine with the jasmine fresh flower;
(7) jacquard weave
Other gets the jasmine fresh flower, standing time after described jasmine fresh flower is won was less than 10 hours, with the evenly mixing once more of the tea base after separating in described jasmine fresh flower and the described step (6), the tea base after separating in the described step (6) and the weight ratio of described jasmine fresh flower are 100: 8, mix, banked up 10 hours, and afterwards the tea base was separated with the jasmine fresh flower.
Comparative Examples 1
(1) gets the raw materials ready (identical) with the technology of getting the raw materials ready of the step (1) among the embodiment 1
(2) the tea base is handled
Measure the tea base water content after making with extra care, control its water content in 5 (weight) % scope;
(3) camellia amalgamation (identical) with step (3) the camellia amalgamation technology among the embodiment 1
(4) logical flower (identical) with the logical flower process of the step (4) among the embodiment 1
(5) rocket
Tea base after logical the spending in the step (4) is separated by screen-dividing machine with Jasmine;
(6) drying
Use the bottle formula to fry the tea machine to carrying out drying with tea base after Jasmine separates in the described step (5), described drying is at 95 ℃ of following heat preservation and drynesses, is 8 (weight) % until tea base water content;
(7) jacquard weave (identical) with step (7) jacquard process among the embodiment 1
Embodiment 2
(1) gets the raw materials ready
Described getting the raw materials ready comprises the preparation of tea base and jasmine fresh flower;
Being prepared as of described tea base, selecting the fresh leaves of tea plant mixture of a bud one leaf, two leaves and a bud, a bud three leaves is raw material, described fresh leaves of tea plant is a camber, after described fresh leaves of tea plant process sub-sieve, the removal of impurities, obtains the tea base of basement system jasmine tea;
Standing time was less than 10 hours after described jasmine fresh flower was plucked;
(2) the tea base is handled
Measure the tea base water content after making with extra care, control its water content in 12 (weight) % scope;
(3) camellia amalgamation
Getting the middle water content of step (2) is tea base 100 weight portions of 12 (weight) %, jasmine fresh flower 30 weight portions of getting ready in the step (1), elder generation's lay one deck tea base layer, even lay one deck jasmine fresh flower layer on tea base layer again, lay so repeatedly, totally 5 layers on tea base layer and jasmine fresh flower layer, last layer is a tea base layer, form the amalgamation heap of tea base layer and jasmine fresh flower layer, high 50cm is piled in described amalgamation, and described amalgamation heap is trapezoidal;
(4) logical flower
When the temperature of jasmine fresh flower layer in the described amalgamation heap arrives 50 ℃, lead to flower, described logical flower is that tea base in the step (3) and jasmine fresh flower are mixed, and scatter in the shop, form hybrid reactor, the heap height of described hybrid reactor is reduced to 15cm, lower the temperature, when temperature is reduced to 30 ℃, mixed uniformly tea base and jasmine fresh flower are piled the high trapezoidal shape hybrid reactor into 50cm again; The process of lowering the temperature, piling again intensification of being loose in above-mentioned shop repeats 3 times;
(5) drying
After 16 hours basement system, the described 16 hours basement system time is the total time of camellia amalgamation and logical flower, the tea base after using bottle formula stir-fry tea machine to logical spending in the described step (4) and the mixture of jasmine fresh flower carry out drying, described drying is at first the mixture of tea base and jasmine fresh flower to be put into bottle formula to fry the tea machine, speed with 5 ℃/min is warmed up to 100 ℃ again, is incubated 8 minutes, is cooled to 70 ℃ afterwards gradually, heat preservation and dryness is 8 (weight) % until tea base water content;
(6) rocket
Dried tea base in the step (5) is separated by screen-dividing machine with the jasmine fresh flower;
(7) jacquard weave
Other gets the jasmine fresh flower, standing time after described jasmine fresh flower is won was less than 10 hours, with the evenly mixing once more of the tea base after separating in described jasmine fresh flower and the described step (6), the tea base after separating in the described step (6) and the weight ratio of described jasmine fresh flower are 100: 6, mix, banked up 12 hours, and afterwards the tea base was separated with the jasmine fresh flower.
Comparative Examples 2
(1) gets the raw materials ready (identical) with the technology of getting the raw materials ready of step (1) among the embodiment 2
(2) the tea base is handled
Measure the tea base water content after making with extra care, control its water content in 5 (weight) % scope;
(3) camellia amalgamation (identical) with step (3) camellia amalgamation technology among the embodiment 2
(4) logical flower (identical) with the logical flower process of step (4) among the embodiment 2
(5) rocket
Tea base after logical the spending in the step (4) is separated by screen-dividing machine with Jasmine;
(6) drying
Use the bottle formula to fry the tea machine to carrying out drying with tea base after Jasmine separates in the described step (5), described drying is at 95 ℃ of following heat preservation and drynesses, is 8 (weight) % until tea base water content;
(7) jacquard weave (identical) with step (7) jacquard process among the embodiment 2
Method with the sensory review is evaluated the jasmine tea for preparing in embodiment 1,2 and the Comparative Examples 1,2, the results are shown in Table 1.
Table 1
|
Embodiment 1 |
Comparative Examples 1 |
Embodiment 2 |
Comparative Examples 2 |
Dried tea profile/score |
Tight thin curling shows milli/100 |
Tight thin curling shows milli/100 |
Tight knot is straight/80 all |
Tight knot is straight/80 all |
Soup look/score |
Yellowish green still bright/95 |
Yellowish green bright/100 |
Yellowish green/95 |
Yellowish green bright slightly/100 |
Fragrance/score |
Fresh/96 |
Fresh/88 |
Fresh/94 |
Fresh/86 |
Flavour/score |
To the marrow mellow/94 |
Pure and mild/86 |
To the marrow mellow/90 |
Pure and mild/84 |
At the bottom of the leaf/score |
Tender even complete/80 |
Tender even complete/80 |
Still tender even/80 |
Still tender even/80 |
PTS |
95.55 |
90.6 |
88.65 |
84.3 |
Annotate: the calculating of PTS is to obtain according to jasmine tea class tealeaves scoring coefficient calculations among the NY/T 787-2004 " tealeaves sensory review universal method ", and the scoring coefficient is assigned as: profile 25%, and soup look 5%, fragrance 35%, flavour 30% is at the bottom of the leaf 5%.