Use dilute bleach and vinegar to clean and disinfect.

1. Add an appropriate amount of bleach (chlorine content not exceeding 1) to 5 liters of water, then soak the pickle jar in it and keep it soaked for 20-30 minutes. Then rinse with clean water.

2. Dilute the vinegar into a disinfectant solution with a ratio of 1:1 to water, soak the pickle jar in it, and keep it soaked for 20-30 minutes. Then rinse with clean water.