At the beginning of the 9th century, tinned tinplate was invented, and then tea was served with tinplate. Durrant came up with the idea of using tinplate, which was popular at that time, from the change of the material of tea cans. He made the world's first tin can himself. Tin cans are light in weight, good in sealing, not easy to be damaged and easy to transport. 1823, Durrant applied for a patent in Britain and opened the world's first tinplate canning factory. But because it is completely handmade, the cost of canned food is very high. It was not until 1847 invented the machine for pressing cans that the production cost came down. After the popularity of tin cans 100 years ago, American Lenots thought of trying other materials to make cans. 1947, the world's first aluminum can was born in Reynolds' hands. It is made of aluminum foil as thin as paper, which is very light. Later, people developed it into a more convenient can.