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
Beverage-can stove including stoves made of tin cans such as cat food tins, tuna cans, and juice cans — the basic design is very similar. Windscreens/stands can be fabricated from tin cans, cut to size with ventilation holes added. Steel beverage cans of the classic 12 ounces design are still in limited use and while they are heat resistant, their coating will burn off and they will rust if not cared for. Each stove works well to supply one or two people. When used to cook larger meals (greater than 2 cups (0.5 litres)), it is less efficient than a more-powerful stove