Put the ground product into a stainless steel or large paper tube with a sealed plastic bag inside. After grinding, put it into plastic bags and weigh as much as you buy. This is a highly profitable retail method, and all of them are sold raw.
I'm not asking you to sell fried noodles (the dry food of the Eighth Route Army in the past, or the flour fried with Mongolian butter and boiling water to make oil tea). That's not true. As we all know, prices can't go up.