Preparation technology of wild jujube leaf compressed tea

Abstract

The invention discloses a preparation technology of compressed wild jujube leaf tea, and relates to the field of tea preparation technologies, and the preparation technology comprises the following steps: picking tender wild jujube leaves with the leaf length of not more than 5cm; spreading and airing the picked tender leaves of wild jujubes; carrying out fixation treatment on the spread and aired tender wild jujube leaves; putting into a rolling machine after fixation; sending the rolled tea into a bale opener; sealing after bale breaking is finished, then putting the bale into a heat preservation container, and braising tea leaves through the temperature of the tea leaves; taking out and naturally spreading and airing again after braising; feeding into a dryer for drying; putting the dried tea leaves into a tea steaming machine for steam softening; putting the softened tea leaves into a mold, and pressing into tea blocks; and packaging the tea blocks, and vacuumizing to obtain a finished product. The compressed wild jujube leaf tea prepared by the preparation process of the compressed wild jujube leaf tea has the advantages of emerald green color, uniform leaves, bright soup color after brewing, lasting fragrance, softness and mellowness, high nutritional and health-care values and the like.

Description

Technical Field

[0001] The invention relates to the field of tea preparation technology, in particular to a preparation technology of sour jujube leaf compressed tea. Background Art

[0002] Compressed tea is made of black tea, old green tea, Zhuang tea and other suitable raw teas, and is processed through typical processes such as piling, steaming and pressing to form brick-shaped or other shaped teas. Compressed tea is rich in tea polyphenols, tannic acid and other elements, and has the effects of strengthening the spleen, nourishing the spleen, and stimulating appetite, making it especially suitable for people with indigestion and loss of appetite.

[0003] The sour jujube is a plant of the genus Ziziphus of the family Rhamnaceae, which is widely distributed in the vast areas of northern my country, especially in the low mountain and hilly areas of Hebei, Shanxi, Shaanxi, Henan, Shandong and other places. Its dried mature seeds, sour jujube seeds, are commonly used in clinical Chinese medicine to calm the mind and soothe the nerves. They have the effects of nourishing the heart and liver, calming the mind and soothing the nerves, astringing sweat, and promoting the production of body fluids. In addition, the Materia Medica records that the pulp, flowers, leaves, thorns, bark and roots of the sour jujube can be used as medicine. Among them, the sour jujube leaves are also known as thorn leaves. The sour jujube leaves are rich in nutrients such as flavonoids, saponins, amino acids, nucleosides, trace elements, etc. Modern pharmacological studies have shown that the sour jujube leaves have obvious health benefits such as calming the nerves, anti-oxidation, and protecting the liver.

[0004] However, the current preparation steps and methods of the sour jujube series tea are extremely chaotic, the effect is not significant, resulting in a great waste of sour jujube leaf resources, and therefore a preparation process for sour jujube leaf compressed tea is urgently needed. Summary of the invention

[0005] In order to solve the above-mentioned problems in the prior art, the present invention provides a preparation process of wild jujube leaf tea compressed tea.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a preparation process of a compressed tea of ​​wild jujube leaf tea, comprising the following steps: S1: Pick young leaves of sour jujube with a leaf length not exceeding 5 cm; S2: Spread the harvested young leaves of sour jujube to dry in the air with a thickness of 3-5 cm for 10-15 hours, and turn them over every 1-1.5 hours; S3: After being spread out to dry, the young leaves of the sour jujube are subjected to a killing treatment, the killing temperature is 230-260°C, and the killing time is 3-6 minutes; S4: After the fixing, put the green leaves into the rolling machine and roll them alternately in the forward and reverse directions for 2-4 minutes; S5: The rolled tea is sent to the loosening machine at a temperature of 80-110℃; S6: After loosening the bag, seal it and put it into a heat-insulating container to be steamed for 2-4 hours by the tea itself; S7: After the greening, take it out and spread it out to dry naturally again. The drying time is 5-8 hours; S8: Send to dryer for drying, the drying time is 1-2h; S9: The dried tea leaves are put into a tea steaming machine for steam softening at a temperature of 70-100°C; S10: putting the softened tea leaves into a mold and pressing them into tea blocks; S11: After packaging the tea blocks, vacuum is applied to obtain a finished product.

[0007] Compared with the prior art, the invention has the following beneficial effects: the compressed sour jujube leaf tea prepared by the preparation process of the compressed sour jujube leaf tea has the advantages of emerald green color, uniform leaves, bright soup color after brewing, lasting fragrance, mellow and refreshing aroma, high nutritional and health value, etc. DETAILED DESCRIPTION

[0008] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0009] Embodiment 1, this embodiment provides a preparation process of a compressed tea of ​​jujube leaf tea, comprising the following steps: S1: Pick the young leaves of jujube with a leaf length of 4 cm; S2: Spread the harvested young leaves of sour jujube to dry in the air with a thickness of 5 cm for 15 hours and turn them over every hour; S3: The young leaves of the sour jujube after being spread out for airing are subjected to a killing treatment, the killing temperature is 260°C, and the killing time is 6 minutes; S4: After the fixing, put the green leaves into the rolling machine and roll them alternately in the forward and reverse directions for 4 minutes; S5: The rolled tea is sent to the loosening machine at a temperature of 110°C; S6: After loosening the bag, seal it and put it into a heat-insulating container to be steamed for 4 hours under the temperature of the tea itself; S7: After the greening, take it out and spread it out to dry naturally again, and the drying time is 8 hours; S8: Send to dryer for drying, the drying time is 2h; S9: The dried tea leaves are put into a tea steaming machine for steam softening at a temperature of 100°C; S10: putting the softened tea leaves into a mold and pressing them into tea blocks; S11: After packaging the tea blocks, vacuum is applied to obtain a finished product.

[0010] Embodiment 2, this embodiment provides a preparation process of a compressed tea of ​​jujube leaf tea, comprising the following steps: S1: Pick young leaves of jujube with a leaf length of 3 cm; S2: Spread the picked young leaves of sour jujube to dry in the air with a thickness of 3 cm for 10 hours and turn them over every hour; S3: The young leaves of the sour jujube after being spread out for airing are subjected to a killing treatment, the killing temperature is 230°C, and the killing time is 5 minutes; S4: After the fixing, put the green leaves into the rolling machine and roll them alternately in the forward and reverse directions for 3 minutes; S5: The rolled tea is sent to the loosening machine at a temperature of 90°C; S6: After loosening the bag, seal it and put it into a heat-insulating container to be steamed for 3 hours by the tea itself; S7: After the greening, take it out and spread it out to dry naturally again, and the drying time is 5 hours; S8: Send to dryer for drying, the drying time is 1h; S9: The dried tea leaves are put into a tea steaming machine for steam softening at a temperature of 80°C; S10: putting the softened tea leaves into a mold and pressing them into tea blocks; S11: After packaging the tea blocks, vacuum is applied to obtain a finished product.

[0011] Embodiment 3, this embodiment provides a preparation process of a compressed tea of ​​jujube leaf tea, comprising the following steps: S1: Pick the young leaves of sour jujube with a leaf length of 2 cm; S2: Spread the picked young leaves of sour jujube to dry in the air with a thickness of 3 cm for 10 hours and turn them over every 1.5 hours; S3: The young leaves of the sour jujube after being spread out for air are subjected to a killing treatment, the killing temperature is 230°C, and the killing time is 3 minutes; S4: After the fixing, put the green leaves into the rolling machine and roll them alternately in the forward and reverse directions for 2 minutes; S5: The rolled tea is sent to the loosening machine at a temperature of 80°C; S6: After loosening the bag, seal it and put it into a heat-insulating container to be steamed for 2 hours by the tea itself; S7: After the greening, take it out and spread it out to dry naturally again, and the drying time is 5 hours; S8: Send to dryer for drying, the drying time is 1h; S9: The dried tea leaves are put into the steaming machine to soften the tea leaves at a temperature of 70°C S10: putting the softened tea leaves into a mold and pressing them into tea blocks; S11: After packaging the tea blocks, vacuum is applied to obtain a finished product.

[0012] Of course, the above description is not limited to the above examples. Technical features not described in the present invention can be achieved by or by using existing technologies, which will not be repeated here. The above embodiments are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention, and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A process for preparing a compressed tea of ​​wild jujube leaf tea, characterized in that: The following steps are involved: S1: Pick young leaves of sour jujube with a leaf length not exceeding 5 cm; S2: spreading the picked young leaves of sour jujube to dry; S3: After being spread out to dry, the young leaves of the sour jujube are treated to be withered; S4: After the fixing, put the green leaves into the rolling machine and roll them alternately in the forward and reverse directions for 2-4 minutes; S5: The rolled tea is sent to the loosening machine at a temperature of 80-110℃; S6: After loosening the bag, seal it and put it into a heat-insulating container to be steamed for 2-4 hours by the tea itself; S7: After the greening, take it out and spread it out to dry naturally again; S8: Send to dryer for drying; S9: The dried tea leaves are put into a tea steaming machine for steam softening; S10: putting the softened tea leaves into a mold and pressing them into tea blocks; S11: After packaging the tea blocks, vacuum is applied to obtain a finished product.

2. The process for preparing the compressed tea of ​​sour jujube leaf tea according to claim 1, characterized in that: The thickness of the drying in S2 is 3-5 cm, the drying time is 10-15 h, and it is turned over every 1-1.5 h.

3. The preparation process of the compressed tea of ​​sour jujube leaf tea according to claim 1, characterized in that: The killing temperature in S3 is 230-260°C, and the killing time is 3-6 minutes.

4. The process for preparing the compressed tea of ​​sour jujube leaf tea according to claim 1, characterized in that: The drying time in S7 is 5-8h.

5. The process for preparing the compressed tea of ​​sour jujube leaf tea according to claim 1, characterized in that: The drying time in S8 is 1-2h.

6. The process for preparing the compressed tea of ​​sour jujube leaf tea according to claim 1, characterized in that: The steam temperature in S9 is 70-100°C.