Question: is all silicone microwave safe?
Answer: Silicone bakeware is made from bonded silicon and oxygen and it was deemed safe by the FDA in 1979. The silicone used in bakeware is inert, so it's non-toxic and won't harm the food in any way. ... It can be heated or frozen – Silicone is freezer safe, oven safe, microwave safe and even dishwasher safe.