Some context: I’m in the market for baby bottles. Some manufacturers produce bottles which they state are plastic on the outside and glass on the inside, so the milk only touches glass when it’s inside the bottle. They explain it as a thin layer of glass that somehow binds to the outer plastic. And somehow it’s also unbreakable or shatter-proof.
The bottle itself has the flexibility of regular plastic, which is very odd to me, I usually expect anything made of glass to be completely stiff.
How is this possible?
Also… is there a way for me to know or somehow check if the inside of the bottle really is glass?
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