If you plan to use a copper item for boiling water or cooking, make sure that it is tinned on the inside, as unlined copper can be slightly toxic.
Unlined copper items don't really pose a risk and the toxicity is quite overrated.
mnli hypothesis: Unlined copper items don't really pose a risk and the toxicity is quite overrated. premise: If you plan to use a copper item for boiling water or cooking, make sure that it is tinned on the inside, as unlined copper can be slightly toxic.