3 ms·By metal can, I think you mean aluminum cans. It turns out those are lined with plastic as well.by bluejekyll 3y agoBy metal can, I think you mean aluminum cans. It turns out those are lined with plastic as well.a_puppy 3y agoIt's a different plastic, though; it might taste different.bena 3y agoI'd imagine that the UV light also changes things.Spivak 3y agoHeat and age is also a big factor in how "metallic-y" it tastes.