Minimal Silicone Food Containers are made of 100% premium natural, non-toxic food grade silicone, and they are safe for microwave, dishwasher, freezer and even oven. They are FDA approved (US standard) and LFGB certified (Europe standard). It's the healthiest alternative solution for living without plastic. One durable Minimal silicone container will last for many years and save thousands of plastic containers from the landfill. They are a must-have for every eco-friendly kitchen!