1, cutting the roots of the mustard head, washing, and controlling the moisture; Take a small jar, scrub it clean, dry it, sprinkle some salt on the bottom of the jar first, then code a layer of mustard head, sprinkle a layer of salt, put it on and add some cold water (water can drown the mustard head).

2. Turn it once a day a few days before curing, and once every three days after curing for about a month.