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Vacuum packing machine tea packaging What are the requirements?
- Jun 22, 2016 -

First, moisture

Tea is tea in the water and chemical changes of medium, low moisture content in favor of preservation of the quality of tea. Tea moisture content should not exceed 5%. When the long-term preservation of 3% for the best. Otherwise, ascorbic acid is easily decomposed tea, tea color, smell, taste, etc. will change, especially at higher humidity, deterioration of speed up. Therefore, tea vacuum packaging machine in the packaging to choose good moisture resistance, such as aluminum foil or aluminum foil composite film coating base material for the packaging material proof packaging.

Second, anti-high temperature

Temperature is an important factor affecting the quality of tea change, the temperature difference between 10 ℃, the rate of a chemical reaction difference of 3 to 5 times. Tea oxidation at high temperatures will exacerbate containing substance, resulting in rapid reduction of polyphenols and other active substances, quality deterioration accelerated. Tea storage temperature below 5 ℃ best. 10 ~ 15 ℃, the tea color loss is slower. Color effect can be maintained is still good, when the temperature exceeds 25 ℃, the color will change rapidly tea. Therefore, the tea is suitable for preservation at low temperatures.