my baby is 1 year 2 months old, from when can I start introducing cow's milk?

A. After the age of 12 months you can introduce it to the child by adding about 20 to 30% of water to begin with and then slowly you can reduce the amount of water in the milk when you see the child is able to digest reduce the water by 5% and slowly and then just go for Just about 5% water at the end of the milk which you use for boiling the milk