The time for bottle replacement is determined by the material of the bottle, whether it is broken or not, and the specific time varies and cannot be generalized. Bottles generally include glass, plastic, silicone bottles and so on. If used for too long, it is prone to viral and bacterial infections, which can have an impact on your baby’s health. Usually, glass bottles can be used all the time if they are not broken or cracked, but they need to be cleaned and disinfected regularly, and it is recommended that they be boiled in boiling water for at least 30 minutes for disinfection. In addition, plastic bottles are generally not recommended to be used for more than 6 months, because frequent cleaning can easily cause scratches on the wall of the bottle, the inner wall is rough, and there is a hidden danger of breeding bacteria. Therefore, once the inner wall of the plastic bottle appears fuzzy, it is recommended that it be replaced in a timely manner; silicone bottles are generally replaced once every 3-6 months, and if the bottle appears discolored, it should be replaced in a timely manner. In addition, the baby’s pacifier also needs to be replaced in a timely manner, and it is recommended that it be changed once every 2 months. If there is a broken pacifier, texture deterioration, etc., should be promptly replaced with a new one. Usually need to pay attention to the baby’s oral hygiene to avoid infection.