How often do we need to change milk bottles (not teats)? My milk bottles have turned cloudy from the sterilisation, wondering if it is necessary to get new bottles.

Sounds normal. To change bottles around 6 month, tears 3 months.

Yes. Should change every 2 to 3 months

Bottles 6 mths. Teats about 2-3 mths

Same. Change every 5-6 months.

hardly change

6months

4mth