One of the main things I'm asked when it comes to plastic-free essentials is what to use for freezer and food storage bags. I personally use glass/stainless steel tubs to store, freeze and travel with food but I know space and other factors have left a bit of a gap for people and these reusable silicone bags are the answer I think a lot of you have been waiting for! Platinum silicone is made primarily from sand (silica) & oxygen and contains no added fillers, polymers, or by-products. Stasher bags are completely non-toxic, and can be safely subjected to heat without the worry of toxic chemicals leaching into the bag’s contents. FEATURES Dishwasher safe Freezer friendly Microwave friendly HOW TO USE The best way to open your Stasher bag is to hold your thumbs flat over each side of the seal, and gently roll each side downward and away from each other. To close your bag, express the excess air from your Stasher and then pinch the seal shut!