Anonymous wrote:I don't know about their safety, but I feel that it alters the flavor slightly. However, I am a freak who doesn't like to drink out of plastic cups, as it makes water taste plasticy.
Anonymous wrote:I've read that it's impossible to really know what additives are in it, so it's not as safe as using glass or a non-reactive metal. The colored silicone is particularly iffy.
I'm sticking to stainless steel, tin, glass, etc.