You may have noticed the plastic lining in cans that house acidic foods, like tomato sauce, and sadly in baby formula cans but did you know that your aluminum soda cans are actually lined with plastic? I've heard this but I found a picture on a "plastic-free" blog
that actually showed the inside layer of the can. Some sodas are so acidic that they require this plastic lining or else they'd corrode the can! Does it make you think what it's doing to your insides? If you do opt for soda, buy a brand that packages in glass to help ingest the least toxins.