High-grade tea vacuum the advantage of independent small packaging

High-grade tea vacuum the advantage of independent small packaging tea really what are the benefits of the packing machine? As we know, tea vacuum packing machine can be said to be the tea good helper, good if you could choose a suitable vacuum machine, tea for the tea can be very good play the role of insurance. What are the advantages then tea vacuum packing? The first: the advantages of vacuum packaging tea is moistureproof. The moisture in the tea is tea biochemical changes of medium, low moisture content is conducive to the preservation of the tea quality. The tea water content should not be more than 5%. When long-term preservation with 3% is the best. Otherwise the ascorbic acid easy to decompose in tea, tea can change such as color, aroma, taste, especially under high temperature, the speed of the metamorphic to accelerate. Therefore, when the tea packaging can choose moisture-proof performance is good, such as aluminum foil or aluminum foil composite film materials on the basis of the evaporated film moisture-proof packaging for packing material. Second: tea vacuum machine can prevent oxidation. Oxygen content in the vacuum packaging packaging got flu treatment can lead to the oxidation of some components in tea. Such as ascorbic acid easily oxidized into DNA ascorbic acid. And further pigment reaction with amino acid knot, worsen the tea flavor. So. Oxygen content in tea packaging must be effectively controlled under 1%. On the tea vacuum packaging machine packaging technology. Inflatable packaging method or vacuum packing method can be used to reduce the presence of oxygen. Vacuum packaging technology is put the tea into the tightness good soft film bags inside. Out of the air bag when packing, caused a certain degree of vacuum, then seal sealing packing method; Inflatable packaging technology is when discharge air with filling the inert gas such as nitrogen, the purpose is to protect color, aroma and taste of tea stable, keeping its original quality. Third: used as can rise to choke. The fragrance of the tea is easily lost, and easily affected by the peculiar smell, especially composite membrane residual solvents and electric iron processing, heat sealing processing into the smell will affect the tea flavor, making the aroma of tea. Accordingly, when packing the tea from the fragrance from the packaging must be avoided and absorb peculiar smell from the outside world. Tea packaging materials must have certain cut off gas properties. Fourth: can prevent high temperature. Temperature is one of the important factors affect the tea quality change, temperature is 10 ℃, chemical reaction rate is 3 ~ 5 times. Tea exacerbate containing substances oxidation at high temperatures, leading to effective material such as polyphenols reduce rapidly, the speed up of quality deterioration. Tea storage temperature below 5 ℃. 10 ~ 15 ℃, tea color fade slowly. Colour and lustre effect can maintain is good, when the temperature more than 25 ℃, the tea color will change quickly. Therefore, the tea is suitable for preserved in low temperature. Independent tea bag packing, it depends on types of tea, oolong tea for seven to ten grams, black tea, green tea, yellow tea, white tea is 3 to 5 grams.