Preparation method of composite fragrant cold-brewed tea and composite fragrant cold-brewed tea prepared by preparation method
A technology for compound aroma and cold-brewed tea, which is applied in the directions of tea, tea extraction, tea treatment before extraction, etc., can solve the problems of complex industrial production operation, single taste of cold-brewed tea leaves, and long brewing time of cold-brewed tea, etc. To achieve the effect of long leaching time, rich aroma and convenient operation
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Embodiment 1
[0027] The tealeaves A of the present embodiment is jasmine tea; the tealeaves B is white peony, and the size of the tealeaves C is about 0.5cm;
[0028] The preparation process of the present embodiment is as follows:
[0029] Step 1: Weigh 250g of tea leaves A, add 80°C pure water at a ratio of 1:10, and extract at a constant temperature of 85°C for 60 minutes. After leaching, use a 500-mesh filter cloth to filter out the tea dregs, then cool the tea soup until the temperature of the tea soup is not higher than 40°C, and then transfer it to a ceramic membrane filtration equipment (Hangzhou Rena Membrane, model RNM-TCM50) for further filtration . The filtered tea soup was concentrated in a roll-type RO membrane concentration equipment (Hangzhou Rena Membrane, model RNM-18G) until the solid content of the tea soup was about 20 Brix°, and about 300 mL of tea A concentrated juice was obtained.
[0030]Step 2: According to the mass ratio of dry tea A and tea B as 1:1, take 120m...
Embodiment 2
[0034] Tea A in this embodiment is stir-fried green tea; tea B is Ceylon black tea CTC; tea C is charcoal roasted oolong tea, the size of which is about 2cm.
[0035] The preparation process of the present embodiment is as follows:
[0036] Step 1: Weigh 250g of tea leaf A, add 60°C pure water at a ratio of 1:15, and extract at a constant temperature of 65°C for 40 minutes. After leaching, filter out the tea dregs with a 500-mesh filter cloth, and when the temperature of the tea soup drops to 40-50°C, add galactosidase to the tea soup for enzymatic hydrolysis for 1 hour. After the enzyme treatment, filter the tea soup with a 500-mesh filter cloth and cool it until the temperature of the tea soup is not higher than 40°C, and then transfer it to a ceramic membrane filtration equipment (Hangzhou Rena Membrane Engineering Co., Ltd., model RNM-TCM50) for further filtration. The filtered tea soup was concentrated in a roll-type RO membrane (Hangzhou Rena Membrane Engineering Co., L...
Embodiment 3
[0041] Tea A in this embodiment is Tieguanyin tea with a light fragrance; tea B is fried green tea with a size of about 1 cm;
[0042] The preparation process of the present embodiment is as follows:
[0043] Step 1: Weigh 250g of tea A, add pure water at a ratio of 1:15, and extract at room temperature for 2 hours. After the leaching is finished, filter out the tea dregs with a 500-mesh filter cloth, then raise the temperature of the tea soup to 40-50°C, and add 1.25g of pectinase for enzymatic hydrolysis for 0.5h. After the enzyme treatment, filter the tea soup with a 500-mesh filter cloth and cool it until the temperature of the tea soup is not higher than 40°C, and then transfer it to a ceramic membrane filtration equipment (Hangzhou Rena Membrane, model RNM-TCM50) for further filtration. The filtered tea soup was concentrated in a roll-type RO membrane concentration equipment (Hangzhou Rena Membrane, model RNM-18G), until the solid content of the tea soup was about 30 Br...
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