Canning novelty. Early methods of manufacture employed poisonous lead solder for sealing the cans. Studies in the 1980s attributed the lead from the cans as a factor in the disastrous outcome of the 1845 Franklin expedition to chart and navigate the Northwest Passage. Later studies found this to be false. Increasing mechanization of the canning process, coupled with a huge increase in urban populations across Europe, resulted in a rising demand for canned food. A number of inventions and improvements followed, and by the 1860s smaller machine-made steel cans were possible, and the time to cook food in sealed cans had
Pet food the 2007 pet food crisis, melamine used in coatings for pet food cans can migrate into the food. Therefore, the regular melamine migration limit (SML) of 2.5 mg/Kg for food and feed has been expanded to pet food. This limit is valid for canned wet pet food on an ‘as sold’ basis. The 2007 pet food recalls involved the massive recall of many brands of cat and dog foods beginning in March 2007. The recalls came in response to reports of kidney failure in pets consuming mostly wet pet foods made with wheat gluten from a single Chinese company, beginning