Although the application of one way exhaust valves seems simple, the technical challenges behind them are quite complex. Before Goglio's innovative invention of the one-way exhaust valve, many coffee packagers could only choose to pierce a small hole in the gusset of the package to help the coffee beans release gas naturally. However, this practice has significant disadvantages: external contaminants will take the opportunity to invade the bag and react with the coffee beans to oxidize, which will seriously affect the quality of the coffee. From the initial simple design to today, Foshan Shunde Huazhong Industry Co., Ltd.'s one way exhaust valve technology has been continuously innovated. Our model of HZV6/HZV6F valve is currently the most new in the world, the most functional (with three-speed exhaust function), it is suitable for different size of bags. This valve is designed by combining the advantages of various exhaust valves on the market. It has been got favorable comments by all customers.
