Before the first use, just sterilize by immersing the pacifier in boiling water for five minutes. Make sure the pacifier doesn’t touch the bottom of the pot. Afterwards, just clean on a daily basis, by washing it in mild liquid soap under running water — if it needs an extra thorough clean place it in a strainer and sterilize it by pouring boiling water over it. But don’t boil it again and never leave it to cool down in boiling water. Because the pacifiers are made from natural rubber, they are not dishwasher-safe. And we don’t recommend the use of sterilizers.