4m Height One Way Vent Valve In PE Food Grade Protect Coffee Bag From Damp

4m Height One Way Vent Valve In PE Food Grade Protect Coffee Bag From Damp

The one way vent valve , it works that the outer air won't get into bags , and inner air could vent from

bags , release the air and protect bags from damp and expandation.

1.  Usually sealed on coffee bags , coffee bean bags , cereal bags with one way vent valve

2.  Foil-based laminated packaging , food flexible bags 

3. Pet's food composition bags 

4. Vacuum bags with valve could degassing air from bags

5. Seasoning sauce packing bags , air vent , keep bags from damp

1. Some food will produce volatilized air after roast , with one way vent valve could vent air while outer air

won't get into bags , will upmost protect the commodity 

2. 100% food grade PE material , could used for food softbags

3. Guard against damp , prolong the storage time of commodity

4. Preserves aroma characteristics within the package during shelf life