What Is The Use Of The Exhaust Valve For Coffee Bags?

- Apr 10, 2019-

Nowadays, people's living standards are constantly improving, and their work is getting more and more busy. In recent years, coffee has become a favorite drink for young people. When you have a cup of coffee when you are sleepy, and come to a cup of coffee at night and night, how are these coffee bags? Do, why are coffee bags different from other product bags, and some have a vent? Today, the manufacturer of coffee bean bags tells you why.


1: Why is the coffee bean bag prone to flatulence?

Since coffee beans naturally produce carbon dioxide after baking, direct packaging tends to cause damage to the package, and prolonged exposure to air causes a loss of aroma and causes oxidation of the oil and aroma components in the coffee to cause deterioration in quality. Therefore, the packaging material of coffee beans is even more important.


2: Why should I add an exhaust valve to the coffee bean bag?

There is an exhaust valve on the bag of coffee beans. This exhaust valve is called a one-way exhaust valve. The purpose of this exhaust valve is to let the air only come out, not to enter, because the coffee beans will produce carbon dioxide after baking. The sealed bag will swell and affect the quality of the coffee beans, so a one-way venting valve must be added. Such a bag is called a one-way venting coffee bag.

The coffee beans will continue to release carbon dioxide several times the volume of the coffee beans after baking. In order to prevent the coffee package from swelling and being isolated from the sunlight, it is designed to install a one-way exhaust valve on the coffee bag. The carbon dioxide is discharged outside the bag.

In addition, the one-way exhaust valve can also block the oxygen outside the coffee bag from entering the bag, avoiding the oxidation of the coffee beans and causing the fragrance to spread quickly, thus absolutely ensuring the flavor of the coffee beans. Of course, when you buy coffee, you can squeeze the bag and smell the coffee through the coffee exhaust valve!


Dongguan Bite Packaging Materials Co., Ltd. is a large-scale company specializing in the production of food-grade composite packaging. It is a professional composite packaging bag manufacturer that uses new equipment to produce packaging bags and film rolls to provide comprehensive, environmentally friendly and safe packaging services for the market. The company produces composite bags, roll film, fruit bags, aluminum foil bags, nozzle bags, stand-up bags, zipper bags, anti-static bags, shaped bags, etc., suitable for food, daily chemicals, electronics, toys, medicine, cosmetics, industrial products, etc. Internal and external packaging of various industries We adhere to the business philosophy of good faith cooperation, high quality and considerate service, and have been recognized by the industry. Our products are sold all over the world. Welcome friends from all walks of life to inquire, visit our factory for inspection and business negotiation.