What is the reason why people invented the dishwasher?

Dishwashers were not invented for the convenience of washing dishes. Dishwashers were originally used to reduce the number of dishes broken by servants, not to save labor. 1886, garis, Illinois invented the first dishwasher. She is the daughter of a civil engineer and the granddaughter of the great ship inventor John Fitch. This socialite is married to a businessman and politician, and the main worry in her life is that she is afraid that the maid will damage her precious porcelain (they have entered ordinary families since the17th century). This kind of worry inspired her, so there was the next story. One night, she sent the servant to wash the dishes herself, and soon found that it was impossible for her. Assuming there are no servants, she needs a machine to replace them. 1883 after the death of her husband William, garis got into debt and became a lot heavier. With the help of an engineer friend, she finished the design of the machine in the wooden shed. Although it is thick and heavy, it is really effective, with small pedals for driving and steam devices. At the Chicago World Expo 1893, the dishwasher was improved, and it can wash and dry 200 dishes in 2 minutes, and was awarded the first prize of "the best mechanical device that can adapt to assembly line operation for a long time". It costs $250, which is too expensive for household machines, but it has a good market in hotels and restaurants. Before garis 19 13 died, she had been running "garis Crescent Dishwasher Company". Other dishwashers were invented in the United States by 1850- 1865 (the inventors seem to be all women), but none of them really worked. 1850, Joel Horton made a manual wooden machine and applied for a patent. 1870, Mary Hobson invented the dishwasher and applied for a patent, but the word "improvement" needed to be added. Electric dishwashers first appeared in1912; 1932 contains special detergent for dishwashers (Gargon); The first automatic dishwasher was invented in 1940, but it was not introduced to Europe until 1960. .