Freeze it. Bake it. Boil it. Microwave it. Ziploc Endurables Medium Silicone Pouches are designed to go directly from freezer, to oven, to table. Durable, reusable silicone features a wide base with feet to help with standing and filling. Cool Grab Tabs allow for easy handling after heating. Secure Seal Technology helps prevent spills. Heat Safe silicone can be used in temperatures up to 425 Deg F. Safe for use in the dishwasher (top and bottom rack), microwave, oven, fridge, and freezer. Made with food-safe silicone and not formulated with BPA or phthalates. Recycle Ziploc Endurables Pouches and Containers with TerraCycle.