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
Festival de Cans is celebrated every year in the parish of Cans (O Porriño, Pontevedra Spain), which has an official population of 400 inhabitants although during the festival that number rises to more than 10,000 people. Its symbols of identity are the peculiar cinema rooms: sheds, basements, empty houses, wine cellars and even henhouses transferred altruistically by their owners who devote themselves to the festival and collaborate in everything they can. Short film is the genre par excellence in Cans, and every year the festival official section shows the best Galician productions of the season. But Cans is something else than a short