Exhaust valve on the bag of coffee beans-Starbucks coffee bean packaging

Exhaust valve on the bag of coffee beans-Starbucks coffee bean packaging

Mena reaction. Mena reaction can take place in room temperature storage environment, and the various chemical components of coffee will interact with each other, slowly degrade or polymerize, and produce a lot of smells. Cryopreservation can inhibit the process of this reaction to some extent.

In a word, the preservation of coffee beans is a great knowledge. The discharge of CO2 and aromatic substances, as well as the entry of external air and water vapor, the quality of coffee beans has been far from each other. Coupled with the chemical properties of coffee beans, and the factors that affect the reaction rate, such as temperature and light, it is really difficult to make coffee fresh and lasting. Coffee cans packed with inert gas pressurization by the famous illy company claim to inhibit the volatilization of coffee aroma. This has also become its patent, but greatly increases the cost of packaging.

To put it more popularly, this air valve is only inaccessible. After roasting, coffee beans will produce gases such as carbon dioxide, which need to be discharged slowly. On the other hand, the one-way exhaust valve is encapsulated on the coffee bag, and a hole is pierced on the surface of the bag in the position of the one-way valve, so that the carbon dioxide precipitated from the baked coffee beans can be automatically discharged out of the bag, but the air from the outside can not enter the bag. It can effectively ensure the dryness and mellow flavor of coffee beans, and will not cause the bags to open because of the accumulation of carbon dioxide, and at the same time prevent coffee beans from being accelerated by external air.

This kind of packaging is to design a valve with a double-layer structure made of thin film on the seal of the bag. after loading the baked beans, the carbonic acid gas produced after baking will be discharged from the valve, and the outside gas can not enter the bag. can effectively maintain the original aroma and essence of roasted coffee beans. At present, this is the most recommended packaging method for roasted coffee beans, and coffee products with this packaging should be selected as far as possible.

Roasted coffee beans will naturally emit carbon dioxide, such as accumulation in the bag will affect the quality of coffee beans, and the "one-way exhaust valve" on the bag can let the excess gas out of the bag, and can squeeze the bag to smell the fragrance when buying coffee.

The "one-way exhaust valve" coffee bag can insulate the light and air from outside the bag, so that the coffee beans can keep the fresh original taste of the coffee beans in the best state of preservation and packaging.