1. Disinfection method of laundry detergent plus white vinegar/salt water. It's definitely not enough to wash and dry towels every day. It's best to give them a big cleaning with laundry detergent, white vinegar or salt water once a week.
2. Microwave disinfection. Soak the towel, put it in a fresh-keeping box, and bake it in a microwave oven for 3 ~ 5 minutes.
3. Chemical disinfection. You can buy a special disinfectant, dilute it with hot water, soak the towel for about 15 minutes, and then wash it with clear water.
4. Boiling disinfection method. Put the towel into the pot, add water and salt, cook for 5 minutes on high fire, then turn off the heat, continue to cook for 15 minutes, cool and dry in the sun.