One Direction / One Way Degassing Valve With Coffee Filter Release Air

The one way degassing valve , also as named one direction degassing valve , used for  the package

like below : 

1.  Install on coffee bean stand up bags , coffee paper bags , coffee kraft box

2.  Packing on the doypack of jams , like mustard , peanut, salad , noodle jams  

3. Pet's receipe flexible bags , like pet snack food package 

4. Bakery powder , flavour , bakery bean , fruit powder

5. Seasoning sauce packing bags 

1. After roasting, the coffee bean or coffee powder will produce air , which could make package

expansion.  In case of bags expansion , install a one way degassing valve , can release air . 

2. 100% food grade PE material , no plasticizer. 

3. One way inner air get out from bags ,  the outside air won't get into bags 

4. Keep the coffee beans fresh , prolong the period of validity