around 6 months old
If your baby is around 6 months old, you can offer small amounts of cooled boiled tap water but you should not replace their breastmilk or formula feeds. Breastmilk or formula should still be their main drink up to 12 months of age. After 12 months, their main drink should be water and cow's milk or breastmilk.
When can babies drink water?
