De-gassing Valves
You've seen de-gassing valves on many of the pouches you have purchased. De-gassing valves, also called one-way valves allow for gases that are being produced in the bag to escape preventing the bag from bursting. De-gassing valves are commonly used for coffee, but can be used in any pouch application where the contents of the bag emits gas, such as Kimchi. De-gassing valves allow the built of gas inside the bags to be released but does not allow normal air...