You've seen valves on many of the pouches you have
A degassing valve, also called a one-way degassing valve, allows gases produced by oxygen in the bag to escape, preventing the bag from bursting due to the built up pressure. Bags designed with a one-way degassing valve help extend product freshness. These are commonly used for rigid coffee packaging but can be used in any pouch application where the bag's products emit gas, such as kimchi or sauerkraut.
- Degassing valves allow the built of gas inside the bags to be released but do not allow normal air to enter the bags within the performance limits of the valves. We offer several types, versions, and sizes to meet the different capacity needs of your items.
What is Degassing?
When talking about a degassing coffee valve, we are mainly talking about coffee beans. As you might know, roasting is a much-needed process when dealing with coffee. Green coffee beans are soft and mushy with a grassy smell. Through roasting, the beans unlock that rich aroma and flavor we all love. Along with it, gases are formed inside the beans and are released for several days. In the first 24 hours, almost 40% of gases (mainly carbon dioxide) leave the beans. Degassing can be a challenge when it comes to packaging, and that's when the degassing valve steps in.
A degassing valve is a one-way valve that allows the gas released from the beans to be expelled from the bag without letting air come inside it. This helps promote freshness and keeps the products inside the package free from contaminants for a long time.
Why Do You Need a Valve on Your Coffee Bags?
Due to degassing process, coffee beans release gases even after being packaged. The coffee package can become bulged and eventually burst, provoking loss of packaging and product, even hurting workers and customers. A valve will prevent that by letting the gases out.
- Since it is a one-way valve, it won't allow the outside air to come in. That will avoid oxidation and moisture, keeping the beans fresher for longer, preserving the original aroma and flavor.
- Another plus of having the degassing valve is faster packaging. Two-thirds of CO2 is released from the beans within the first hour after the roasting process. With valved bags, you can start packaging your products in coffee bags right away, being less time-consuming.
