TO GO WARE Silicone Food Container 4 Cup Green, 1 Each Made of 100% high-quality, food grade silicone, approved by the FDA. Nonallergenic & BPA Free Microwave-safe, dishwasher-safe, oven-safe and freezer-safe. Collapses for easy transport & stackable storage. Can withstand temperatures ranging from 150 to 600 F. Lid includes a pull-out vent for microwaving & vacuum seals for freshness.