Why Degassing Valves are Essential in Coffee Pouches: Preserve Freshness & Quality

Have we ever noticed that there is always a small round valve on various coffee bags or other packaging bags? This is because this valve has an indispensable role in coffee specially. We call it a coffee valve or one-way exhaust degassing valve. Please don't underestimate such a small round valve, it is definitely helpful.

Today, coffee is one of the most popular beverages in the world. Whether it's for normal life or socializing, only coffee lovers know that a cup of coffee can energize us for the whole day. Coffee contains traces of caffeine, an amazing ingredient that energizes people at work and prevents drowsiness.

When we hold a cup of coffee, have you ever thought about how the coffee bean is turned into a cup of coffee? The process of turning coffee beans into a cup of coffee involves several steps: first, the beans are roasted to enhance the flavor and aroma. Then, the beans are ground into powder. Next, the coffee powder comes into contact with hot water, usually through a coffee maker or other extraction method. Finally, the extracted coffee liquid is filtered to get the final coffee drink.

If you buy a bag of coffee beans, you may notice a white or clear round valve on the bag and wonder what they are used for. In fact, coffee bags are very much in need of these tiny venting valves or one way degassing valve to help keeping the coffee beans or ground coffee fresh, thus maintaining the original aroma of the coffee.

Then do you know what is the purpose of the vent degassing valves on coffee bags?

The valves on coffee bags are used to handle the release of gases produced during the roasting process. The roasting of coffee releases carbon dioxide (CO2) which, if not managed properly, can build up inside the bag and cause it to expand or even break. Degassing valves allow these gases to escape without letting air in, which helps to maintain the freshness of the coffee by preventing oxidation and spoilage.

In short, the degassing valve keeps the coffee fresh and the coffee bag intact by controlling the release of gases and preventing potential damage.

Now we should have a general understanding of why coffee bags have valves. If you want to know more about degassing valves, please feel free to contact SUNBOWN or send an email to info@sunbown.com directly.