Silicone is the most
advanced material without any corrosion, oxidation, and low air permeability.
It is durable enough to withstand -70℃ of freezing temperature to 260℃ of heat.
It has been widely used for infant feeding products, medical tubes, artificial
arteries and other medical advances. It is odorless, tasteless, and harmless to
humans and environmentally safe. In particular, the main ingredient of this
product, the liquid silicone rubber, is much stronger and more transparent than
ordinary silicone, and is safe with no endocrine disruptor.
Here is the company who used silicone for baby feeding bottle to protect more with silicone that has no marked harmful effects.