Material preparation: salt, laundry detergent, a pot of hot water, a pot of boiling water, clothes rack.
Step 1: Pour salt into the hot water basin (there are many bacteria on the underwear you just bought, and salt has a bactericidal effect).
Step 2: Soak the newly bought underwear in a basin for 20 minutes.
Step 3: Then pour the laundry detergent on underwear (the laundry detergent has the function of cleaning and decontamination).
Step 4: Then carefully rub and clean the newly bought underwear with your hands.
Step 5: Put the rubbed underwear into the washbasin and pour boiling water.
Step 6: soak 15 minutes (boiling water can sterilize and remove the residue of laundry detergent).
Step 7: Then hang the underwear on a hanger and put it in a sunny and ventilated place to dry.