#Ask the Expert Hi. My baby is 10 days shy to 10 months old. I have started with formula milk for him from last week once in a day. As per the ratio mentioned for 6+ months babies I add 7 scoops of formula to 210 ml of water. But my baby consumes only around 100ml at a go and the rest milk gets wasted. I want to know if it is ok to add 4 scoops to 120ml of water keeping the ratio same.