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 supermarket the following day and bought a case of "all the soups", which Carey said he saw when he stopped by Warhol's apartment the next day. When the art critic G. R. Swenson asked Warhol in 1963 why he painted soup cans, the artist replied, "I used to drink it, I used to have the same lunch every day, for twenty years." Another account of Latow's influence on Warhol holds that she asked him what he loved most, and because he replied "money" she suggested that he paint U.S. dollar bills. According to this story, Latow later advised that in