Food Safe - These bags are safe to use with food. Perfect to hold coffee beans until you are ready to grind and brew a fresh cup of coffee. Create snack packs or meal add-ons (yogurt, salad, soup toppings) for children or for yourself at work, hiking/camping trips, and traveling. Durable - 3.9-MIL thick metallic mylar provide durability and protects inner contents from UV and water vapor damage. Pack, transport and story without worry. Multi-purpose: Our mylar foil bags are suitable for ANY powdered or dry goods. Heat Seal and Label These bags can be sealed with an impulse sealer to prolong the shelf life of any product. Labels stick on tightly and will not fall off easily. These bags are the perfect packaging for selling or sampling products.