【With one-way air valve】The one-way air valve keeps the coffee beans and roasted coffee fresh. Excess gas flows from the inside to the outside without returning gas, keeping food fresh.
【Food Grade Material】Made from Matte MOPP, aluminum foil and food grade PE, three-layer composite material design make it stronger, block light, keeps coffee from odor or moisture,ensure the taste of coffee or powder in the bag, and can also be transported over long distances.
【Functions】Household: Suitable for packaging various products, including kitchen ingredients, food and other daily necessities; Commercial: You can attach your own brand label on the surface as a retail or sample display package.
【Heat Seal Demo】1.Put the items in the bags 2.Must use heat sealer machine(not include) to seal the top of the bag(occasionally not completely sealed.