Studies have shown that food-grade silicone is stable and will not release harmful chemicals even when frozen or heated within the specified temperature range.
If you use high-quality silicone ice cube molds and follow the correct care instructions, no harmful substances will be produced even after repeated freezing. Here's what you need to know:
What is food-grade silicone:
Food-grade silicone is an inorganic polymer colloid material made by condensation of silicic acid. It is non-toxic and tasteless, with stable chemical properties. Under normal conditions, it does not react with any acid, alkali or salt except caustic alkali and hydrofluoric acid. It can withstand high temperatures of 220°C, so it can be put in a microwave oven and has no effect on the human body. Compared with other materials, it is safer and healthier. Food-grade silicone has strong stability properties and is more in line with the requirements of healthy and safe living.
Therefore, silicone ice cube trays are flexible and will not crack even after repeated freezing. However, poor quality silicone may degrade over time. So look for some silicone product manufacturers with manufacturing experience and trustworthy to cooperate with. Buy silicone products certified by organizations such as FDA (USA) or LFGB (Europe).
Some potential issues with silicone products:
Degradation: Prolonged use, exposure to extreme temperatures, or cleaning with harsh detergents can cause low-quality silicone to deteriorate and potentially release substances.
Odor/flavor: Silicone may absorb odors or flavors from food if not cleaned properly, but this is more of a usability issue than a health risk.
So how can we ensure silicone ice cube trays are safe?
Buy high-quality silicone ice cube trays: Make sure the trays are labeled food-safe, have a certificate, etc.
Proper care: Avoid cutting, tearing, or scratching the silicone surface. Wash with mild soap and water.
Check for wear and tear: Discard silicone ice cube trays that show signs of degradation, such as discoloration or a sticky surface.
