Coffee packaging bags are generally divided into: non-hermetic packaging, vacuum packaging, one-way valve packaging, pressurized packaging
1. Non-Hermetic Packaging:
It is actually a temporary package that is only used for short-term storage.
2. Vacuum Packaging:
The roasted coffee beans need to be stored for a period of time before they are packaged to prevent carbon dioxide from damaging the package. Such packages can generally be stored for about 10 weeks.
3. One-way Valve Packaging:
Adding a check valve to the bag allows the generated carbon dioxide to escape but will block the ingress of outside air, ensuring that the coffee beans are not oxidized but that the loss of aroma cannot be prevented. This type of package can store up to 6 months. There are also some coffees that use a vent package. They only use a vent hole in the bag and do not install a check valve. Once the carbon dioxide produced by the coffee beans is evacuated, the outside air will enter the bag and cause oxidation, so its storage. The time will be greatly reduced.
4. Pressurized Packaging:
After the coffee beans are baked, they are rapidly vacuum packed and then filled with inert gas. This type of packaging ensures that the coffee beans are not oxidized and the aroma is not lost. It has sufficient strength to ensure that the packaging will not be damaged by air pressure and can be stored for as long as possible. Two years time. Instant coffee packaging