Tea vacuum packaging should pay attention to matters

What should I pay attention to when packaging vacuum packaging machine?

We know that the application range of vacuum packaging machine is very wide. Among them, the common thing is to package the tea. What should it pay attention to when packaging?

1, moisture

The moisture in the tea is the medium for the biochemical change of the tea, and the low moisture content is conducive to the preservation of the quality of the tea. The water content in tea should not exceed 5%. For long-term storage, 3% is good for Zui. Otherwise, the ascorbic acid in the tea will be easily decomposed, and the color, aroma and taste of the tea will change, especially at higher temperatures, the rate of deterioration will be accelerated. Therefore, the tea packaging machine can be used for moisture-proof packaging when packaging, such as aluminum foil or aluminum foil evaporation film as the basic material of the composite film.

2, anti-oxidation

The oxygen content of the tea vacuum packaging machine package has been treated with excessive treatment, which will lead to oxidative deterioration of certain components in tea. For example, ascorbic acid is easily oxidized to become deoxyascorbic acid. Further, a pigment reaction occurs with the amino acid knot to deteriorate the taste of the tea. therefore. The oxygen content of the tea packaging must be effectively controlled below 1%. In the packaging technology of tea packaging machines. Aerated packaging or packaging can be used to reduce the presence of oxygen. The vacuum packaging technology is to put the tea into a soft and flexible film packaging bag. The air in the bag is excluded during packaging, causing a certain degree of vacuum, and then the sealing method is sealed; the air-filling technology is to inject an inert gas such as nitrogen while discharging the air, in order to protect the color, fragrance and taste of the tea. Unchanged and maintain its original quality.

3, choke

The aroma of tea leaves is easily lost, and it is easily affected by external odors. In particular, the residual solvent of the composite film and the odor of the electric iron treatment and heat sealing treatment will affect the flavor of the tea and affect the fragrance of the tea. Therefore, the tea packaging machine must avoid the fragrance from the package and the odor from the outside when packaging the tea leaves. Tea packaging materials must have certain barrier properties.

4, anti-high temperature

Temperature is an important factor affecting the quality change of tea. The temperature difference is 10 °C, and the rate of chemical reaction is 3 to 5 times. Tea leaves will exacerbate the oxidation of the contained substances at high temperatures, resulting in the rapid reduction of effective substances such as polyphenols and the deterioration of quality. The storage temperature of tea leaves is better than 5 °C. At 10 to 15 ° C, the color of the tea leaves is slower. The color effect can also be maintained. When the temperature exceeds 25 ° C, the color of the tea leaves will change faster. Therefore, the tea leaves are suitable for storage at low temperatures.

5, shading

Light can promote the oxidation of chlorophyll and lipids in tea, increase the odorous substances such as valeraldehyde and propionaldehyde in tea, and accelerate the aging of tea. Therefore, when packaging tea leaves, tea packaging machine must be shielded from light to prevent chlorophyll, Other components such as lipids undergo a photocatalytic reaction. In addition, ultraviolet light is also an important factor causing deterioration of tea. Shading packaging technology can be used to solve such problems.

The large-sized external packaging machine is characterized by being free from vacuum or nitrogen-filled (or other gas) packaging, regardless of the size and volume of the package. Wide adaptability, high economic efficiency, and very convenient to use. The packaging materials for this vacuum machine are composite materials such as polyester/polyethylene, nylon/polypropylene, polypropylene/polyethylene, polyester/aluminum foil/polyethylene, nylon/aluminum foil/polyethylene. The items sealed by the vacuum sealing machine have anti-mildew, anti-insect, anti-pollution, anti-oxidation, saving volume, saving freight, prolonging storage period and ensuring the quality of articles. The machine has the advantages of compact structure, small size, light weight, low power consumption, high sensitivity, convenient operation and maintenance, and the like. The whole body uses high temperature baking varnish, stainless steel console, circuit adopts solid state relay control, domestic famous brand cylinder and solenoid valve, and environmental protection vacuum pump. The working process is automatically controlled by computer board, digital tube display works, heat sealing temperature, package of goods. The degree of vacuum and the extension time of the nozzle can be adjusted freely, and it is a new packaging machine that cannot be replaced by the internal drawing packaging machine.

Good packaging technology is definitely inseparable from a good vacuum packaging machine. If you want to know more about this product, you can consult us.