thnx to all

Within 30 minutes.

30 min i think. its mentioned on the formula pack

Maximum half an hour if not consumed... If consumed you need to throw it away.

Its not supposed to be stored, if baby does not consume it immediately it has to be discarded. At most, 10-15 minutes I think, am not sure. I gave on 2 days of baby's birth. At that time we were told to prepare fresh for each feed.