What are the holes in Starbucks coffee bags?
What are the holes in Starbucks coffee bean bags?
Coffee is a beverage made from roasted coffee beans, which is the main drink popular in the world along with cocoa and tea.
Coffee tree is a small evergreen tree of Rubiaceae. Daily coffee is made of coffee beans combined with various cooking utensils, and coffee beans refer to the nuts in the fruit of coffee trees, which are roasted in an appropriate way. Taste is bitter
1. Roasted coffee beans are sealed and packaged in aluminum foil bags to prevent coffee beans from coming into contact with light and air, resulting in rapid fragrance emission and oxidation.
two。 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.
3. 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 the coffee can squeeze the bag to smell the fragrance.
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. This is currently the most recommended packaging method for roasted coffee beans, and coffee products with this packaging should be selected as far as possible.
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 effectively ensures the dry 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.
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