apologies in advance for the dumbness of this question but have bought ds a packet of baby porridge for his breakfast. he has reflux and getting him to actually drink milk is a problem so i thought i'd be really clever and mix some of it in the porridge but i notice on the instructions it says to mix with water. I'd rather mix it with the milk - is there some reason why it says to mix it with water? I have 4 children but am really really out of practice with this baby malarky!