I bought several pickle jars at home, but I can't pickle. Kimchi has gone bad and gone bad. What is the reason?

I'm sure that the pickle jars you bought are all traditional pickle jars. The neck of the traditional pickle jar is short. Under the influence of temperature and pressure, the dirty water along the jar will be sucked into the jar, polluting the pickle, and the pickle will go bad in severe cases. This phenomenon is particularly prominent in urban architecture. The solution is to smash your old pickle jar, throw it away and buy a new one with a high collar. The mouth of the pickle jar with a high neck is high, so the dirty water along the jar edge can't be sucked into the pickle jar. This is a new patent technology for utility model, which is very good.