Coffee Bags with Valve is a special type of coffee packaging, which is characterized by one or more valve devices on the packaging, usually called "one-way exhaust valves". The main purpose of this design is to solve the problem of keeping coffee beans fresh after roasting. Coffee bags with valves have the following advantages:
(1) Keep fresh. The function of the one-way exhaust valve is to allow gas to be discharged from the coffee beans while preventing external air from entering, thereby maintaining the freshness and quality of the coffee beans.
(2) Prevent spraying. This valve can also prevent coffee powder from spraying out, avoid contamination, and ensure the freshness and hygiene of the coffee powder .
(3)Convenient observation. This design not only helps to maintain the freshness of the coffee, but also makes it easier for consumers to judge the freshness of the coffee beans when purchasing, because they can judge whether the coffee beans have discharged the gas produced after roasting by observing whether the valve is open .
(4) Wide range of uses. This type of packaging bag is widely used in a variety of foods such as coffee, tea, snacks, etc., and is widely welcomed for its convenience and practicality .