What’s the Best Reusable Water Bottle?
Aluminum bottles often look like stainless steel but have a big difference. Because aluminum reacts with acidic liquids, they are lined with an enamel or epoxy layer that can wear down. They are not dishwasher-safe. And some linings contain as much BPA as their plastic predecessors, according to a University of Cincinnati College of Medicine study. You can get a good gauge of whether the lining will leach BPA by looking at the color: a golden-orange coating will; a white coating will not. (The new linings by Sigg do not.)
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