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
Campbell's Soup Cans focused on them because they composed a daily dietary staple. Others observed that Warhol merely painted things he held close at heart. He enjoyed eating Campbell's soup, had a taste for Coca-Cola, loved money, and admired movie stars. Thus, they all became subjects of his work. Yet another account says that his daily lunches in his studio consisted of Campbell's Soup and Coca-Cola, and thus, his inspiration came from seeing the empty cans and bottles accumulate on his desk. Warhol did not choose the cans because of business relationships with the Campbell Soup Company. Even though the company at the