I guess I wasn't very clear about this because people are asking yes or no on silicone. Silicone's a great option and safe to warm, cool, or store food in. No chemical leaching, except possibly when you cook with it at temperatures above 300 degrees Fahrenheit.
So I wouldn't cook with it. I don't. But there are good durable products out there. I recommend either FDA food grade or if possible see that it contains a hundred percent of what they call platinum silicone. There's no platinum in it. It's just cured with platinum as a catalyst and that form has no byproduct impurities. So there are plastic codes for your edification and protection. If the estrogenics of plastics don't make you worry enough, remember between four and twelve million tons of plastic waste ends up in the oceans every year. One to two million tons of that come from rivers. So we're all guilty. Plastics are a litter nightmare. They take 500 to a 1000 years to degrade. There's nothing in them bacteria-like and that's what usually degrades things in nature. Scientists call them semi-permanent substances. So recyclability is one thing but degradability when it eventually is thrown away is quite another. Just food for thought. Remember consumer goods companies will make what you buy in greater variety and greater numbers. So let's buy smart.
PMID: 25477047 Chemicals having estrogenic activity can be released from some bisphenol a-free, hard and clear, thermoplastic resins
PMID: 30343762 Recyclability of four types of plastics exposed to UV irradiation in a marine environment Degradation times of plastics: https://www.whoi.edu/fileserver.do?id=107364&pt=2&p=88817 Accessed 11/30/22