Title: Teflon lining unecessary and possibly toxic
Product review: Although this manufacturer has a reputation for vacuum bottles' retaining their temperatures for a long time, I returned this bottle when I realized the interior was completely lined with Teflon! Why?? Teflon is not a clean substance, and is a carcinogen at high temperatures. For sustained very hot temperatures, as in storing hot coffee, there is no advantage for the consumer. As far as cleaning, Teflon would stain more than a stainless steel interior, and would probably affect the taste of the coffee. Hopefully, this manufacturer's major mistake will be rectified.
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