'''Canning''' is the process of [[preservation (food)|preserving]] food by sealing it in a [[tin]], [[steel]], or [[aluminum]] can, most of which are lined with a plastic-like film of BPA/BPS and other modern chemicals. This term is also sometimes used in reference to preserving food in within a partial vacuum in any sealed container such as a canning jar. | '''Canning''' is the process of [[preservation (food)|preserving]] food by sealing it in a [[tin]], [[steel]], or [[aluminum]] can, most of which are lined with a plastic-like film of BPA/BPS and other modern chemicals. This term is also sometimes used in reference to preserving food in within a partial vacuum in any sealed container such as a canning jar. |