LK Packaging freeze to boil bags are made of a special cast polypropylene material that allows them to withstand temperatures from -18 degrees C to 130 degrees C (0 degrees to 266 degrees F). These durable bags can be taken directly from the freezer and placed in boiling water without any performance failures or resulting ruptures.   Excellent clarity, strength, impact resistance, and flexibilityMeets FDA  and USDA  requirements for food contactExtends shelf-life for a variety of food productsDesigned for freezing, heating, and boilingWithstands temperatures from -18 degrees to 130 degrees C (0 degrees to 266 degrees F)Can be used in a microwave for up to 15 minutes as specified in EEC Directive 97/48/EC. Qty per Case: 500 Gauge: 3.15