The customer is a senior coffee lover. He has his own coffee room in his factory, and the coffee machines he uses are all "hot mom" level. He said that after extracting the residue of coffee, he needed to knock it off hard. It was very bad to make this kind of clanging sound in the coffee shop. He wanted to make a device that automatically cleans the powder bowl. So we started the exploration of design and structure. After a year, the project finally landed in mass production, the product successfully launched.