Processing method of Longjing and Chinese toon tea
A processing method and technology of toona sinensis, which are applied in the field of tea processing, can solve the problems that the taste cannot meet the taste of the public, the production capacity of vacuum refrigeration technology is small, and the cost of toon tea remains high, etc., and achieve the effects of improving discoloration, preventing discoloration, and improving toughness.
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Embodiment 1
[0024] The processing method of Longjing Chinese toon tea, described processing method comprises the steps:
[0025] (1) Picking and rinsing of Chinese toon buds and Longjing: pick fresh and complete Chinese toon buds and Longjing without old stems, and gently shake and rinse in clean water to remove floating dust;
[0026] (2) Pretreatment of Chinese toon buds and Longjing: Step (1) Soak the rinsed Chinese toon buds in pretreatment agent A for 30 minutes. The pretreatment agent A is water-soluble dextran with a mass fraction of 1% and 0.5% reduced glutathione mixed aqueous solution, pretreatment temperature 5°C, pretreatment agent pH 5.0, the volume ratio of the wet weight of Chinese toon buds to the pretreatment agent is 1:3; step (1) Rinse and soak Longjing Pretreat in pretreatment agent B for 10 minutes, said pretreatment agent B is a reduced glutathione aqueous solution with a mass fraction of 0.3%, pretreatment temperature is 25°C, pretreatment agent pH is 6.8, Longjing ...
Embodiment 2
[0033] The processing method of Longjing Chinese toon tea, described processing method comprises the steps:
[0034] (1) Picking and rinsing of Chinese toon buds and Longjing: pick fresh and complete Chinese toon buds and Longjing without old stems, and gently shake and rinse in clean water to remove floating dust;
[0035] (2) Pretreatment of Chinese toon buds and Longjing: step (1) soak the rinsed Chinese toon buds in pretreatment agent A for 45 minutes. The pretreatment agent A is water-soluble dextran with a mass fraction of 3% and 0.8% reduced glutathione mixed aqueous solution, pretreatment temperature 8 ℃, pretreatment agent pH 5.5, the volume ratio of Chinese toon buds wet weight to pretreatment agent is 1: 5; step (1) Rinse and soak Longjing Pretreat in pretreatment agent B for 15 minutes, said pretreatment agent B is a reduced glutathione aqueous solution with a mass fraction of 0.5%, pretreatment temperature is 30°C, pretreatment agent pH is 7.0, Longjing wet weight...
Embodiment 3
[0042] The processing method of Longjing Chinese toon tea, described processing method comprises the steps:
[0043] (1) Picking and rinsing of Chinese toon buds and Longjing: pick fresh and complete Chinese toon buds and Longjing without old stems, and gently shake and rinse in clean water to remove floating dust;
[0044] (2) Toona sinensis buds and Longjing pretreatment: Step (1) The rinsed Chinese toon buds were soaked in pretreatment agent A for 30 minutes, and the pretreatment agent A was water-soluble dextran with a mass fraction of 2% and a mass fraction of 0.6% reduced glutathione mixed aqueous solution, pretreatment temperature 6°C, pretreatment agent pH 5.2, the volume ratio of the wet weight of Chinese toon buds to the pretreatment agent is 1:5; step (1) Rinse and soak Longjing Pretreat in pretreatment agent B for 12 minutes, said pretreatment agent B is a reduced glutathione aqueous solution with a mass fraction of 0.4%, pretreatment temperature is 28°C, pretreatm...
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