Method for preparing super low temperature quick frozen tea
A technology of ultra-low temperature quick-freezing and tea leaves, which is applied in tea treatment before extraction, packaging under vacuum/special atmosphere, etc. It can solve the problems of insufficient quality and hygiene, and achieve the effects of short processing time, simple equipment and small footprint.
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[0020] Pick off the tea leaves, sort them to remove impurities, wash them with water to remove air pollutants such as floating dust on the surface of the tea leaves, put 1 kg of clean tea into a basket, put them in a low-temperature quick-freezing freezer at -40°C for 1 hour, and pump them under a vacuum of 600mmHg Vacuum for 0.5-1 hour, until the water is basically removed (water content <3‰), after taking it out, it is inspected and passed the inspection, and it is vacuum-packed and boxed in time. Quick-frozen tea leaves with good quality can also be obtained within the scope of the preparation conditions of the present invention. Since the method is simple, examples are not given one by one. The specific preparation conditions can be determined according to the amount of tea leaves, energy prices, and efficiency requirements. There are ready-made equipment for quick-freezing and vacuuming.
[0021] Taking the production of 1 kg of tea as an example, the production cost can...
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