Canned Foods
Canning foods as a method of food processing have been around since the mid-1800s. In the early days of canned foods, lead was used to line the cans and seal the top of the can. This, unfortunately, resulted in deaths as lead poisoning occurred. However, with improved technology, safely canned foods became more abundant and the industry of food packaging expanded extensively. According to the National Center for Food Preservation, foods that are canned commercially are cooked prior to being placed in the can in order to prevent E. coli contamination. Canned foods come in a wide variety, ranging from meat to vegetables to fruit to refrigerated bread dough.