The invention of any object must be verified by time, constantly improved and perfected. Although the invention of canned food was early, the earliest canned food did not need a bottle opener, and it became popular all over the world with the improvement and popularization of canned food.

It's been 1862 years, and we can get what we call canned food. The first world patent of bottle opener was in 1795, that is, bottle opener was not only used to open cans, but was improved into a can opener in the process of continuous improvement to meet the needs of most people.

It's true. Can was invented by British Peter Durand in 18 10, and can opener was patented in the United States in 1858.

One thing is certain: in the 50 years before the invention of the can opener, people will not feel the lack of a special can opener. Just like before you know your other half, you won't feel that you can't live without someone.

People always have a way to make do. The canned food of 18 10 is very different from the modern canned food. Due to the backwardness of metallurgy and material technology, the cans at that time were thicker and heavier. According to meredith Cyrus Hughes, a food historian, the original cans needed to be opened with a chisel and a hammer.

The invention history of canned food;

/kloc-cans were invented in 0/800, but at that time, cans were packed in cans, and cans in cans did not need a can knife.

Tinplate cans requiring a can cutter were invented in 18 10. At first, tinplate cans were all made by hand, and the output was very low, which led to the long-term inability to popularize tinplate cans, and there was no need to invent tinplate knives.

It was not until 1846 that a machine for producing tinplates was invented that tinplates were popularized. After the popularity of tinplate cans, everyone realized that something that can be opened quickly was needed.

1800, Napoleon? Bonaparte posted a notice, claiming that if someone can invent the technology of long-term food preservation, he can get 6.5438+0.2 million francs. 1805, French grocer Nicholas? After repeated experiments, Appel finally succeeded in developing the world's first can.

Abel's practice is to prepare a large glass bottle and then cook beef, poultry and other foods with boiling water for 30? 60 minutes; Then put the food in the jar and seal the mouth with cork and wax. Nicholas? After Appel invented canned food, he set up a canned food factory with Napoleon's bounty.

18 10, British businessman Peter? Durand obtained a patent for tinplate cans, which we usually call canned. Peter. After Durand invented the tinplate can, he didn't expect it to be used in large-scale commercial production. At first, he invented this kind of canned food only to sell some meat not exceeding 30 Jin on a small scale.

18 12, his friend Brian? Jintang and John? Hall took a fancy to this patent. After negotiation, the two men obtained a patent at 1000, and then set up a tinplate can factory. In 65,438+0,865,438+03, they got a big order from the British army and made a lot of profits.

Peter. Tinplate cans invented by Durand and Nicholas? Compared with the canned glass invented by Appel, the canned glass has better sealing performance, is convenient to transport and is not easy to break. Secondly, the opacity is good, and the light will make the canned food deteriorate and the nutrients will be lost.

Brian? Jintang and John? After Hall established the tinplate canning factory, the tinplate production was mainly done by hand, and a worker could only produce dozens at most a day.

1822, tinplate cans were introduced to the United States from Europe.

1846, American mechanic Henry? Evans invented the can-making machine. A worker can produce more than 500 cans a day through a can-making machine. The mass production of canned food makes ordinary people begin to eat canned food in family life.