The coffee packaging bag has the advantage of one-way exhaust valve
Baked beans just will release carbon dioxide, if put inside the packing bag of seal, can affect the quality of the coffee, affect the taste of coffee, so usually install a vent valve, the release of gas discharge, guarantee the quality of coffee.The advantages of one-way air valve packing bags are as follows:
1. It’s better to keep fresh.The more fresh the coffee beans, the stronger the aroma, the better the beans will not be preserved, and the aroma will soon spread out.
2. due to set up a one-way valve on plastic bags, bags full of goods in the process of piling, at the bottom of the residual air bag in the body is within the upper packaging goods from one-way exhaust valve discharge under the action of gravity, can improve the stability of stacking and increases the stacking height.
3. improve the shock resistance of the plastic bags, when filled with the packing bag of goods during handling or falling from a height, the air inside the bag can be taken out from the one-way valve, reducing the shock wave caused by the residual air bags, to reduce or avoid the resulting broken packages.
4. One-way exhaust valve can also avoid the outside air into the bag to prevent the internal packaging from being oxidized and spoiled.It is mainly used in packaging bags, plastic bags and so on.
5. the difference is that a one-way valve and other products, the one-way valve has filter can isolate powder materials to the influence of the exhaust valve is at the same time let out and not let the gas inside the bag packing in the solid (including dust), and cannot guarantee outside air into the bag.
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