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i'm looking to buy a copper water bottle, for its antimicrobial effects, and refill it from a stream. kosdeg make some beautiful bottles, but they don't ship to my country. anyway on their website, they say DO NOT put hot water inside or use it over an open flame, but i'm calling bullshit. it's an unlined, single-walled copper bottle, i can't think of any reason why you couldn't boil water in it. i'd love to have an extra vessel to boil in, for rehydrating meals, or just to make extra sure the water is free from viruses etc.
what do y'all think?