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From the Wikipedia article: "Silicone compounds are pervasive in the environment. Particular silicone compounds, cyclic siloxanes D4 and D5, are air and water pollutants and have negative health effects on test animals. They are used in various personal care products. The European Chemicals Agency found that "D4 is a persistent, bioaccumulative and toxic (PBT) substance and D5 is a very persistent, very bioaccumulative..." So maybe silicones aren't great either



unless you have proof that the silicone in your drinking container leaches into your drink, then I'm unsure what you're saying has any relevance.


Well since we were talking about replacing plastic lids with silicone it seems relevant.




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