In the early 9th century, after people invented tinplate coated with tin on iron sheets, they switched to tinplate to package tea. Durant came up with the idea of ??using tinplate, which was popular at the time, to make cans from the changes in the materials of tea cans. He took matters into his own hands and made the world's first tin can. Tin cans are lightweight, have good sealing performance, are not easily damaged, and are easy to transport. In 1823, Durante applied for a patent in the UK and opened the world's first tinplate can factory. However, since it is entirely produced by hand, the cost of canning is very high. It was not until the invention of a machine specifically designed to press cans in 1847 that production costs came down. After tin cans became popular for another 100 years, American Leinolz thought of trying other materials to make cans. In 1947, the world's first aluminum can was born in the hands of Leinolz. It was made of aluminum foil as thin as paper and was very light. Later, people developed it into a more convenient can.