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
Canned water under the United States Civil Defense program. Approximately twelve million cans were deployed, and could hold water for more than ten years. Later, some manufacturers started to use Nitrogen flush to remove air and bacteria from their cans to prolong shelf life to 30 years or longer, making the water suitable for long term storage. Canned water Canned water is drinking water, including spring water, carbonated water and mineral water, packaged in tin cans or beverage cans. In individual serving cans, it is less common alternative to bottled water. Canned water is often used where storage or distribution systems are