Is it ok to warm up ebm that's been in the fridge (I usually stand it in a bowl of hot water until it's about body temperature) and then put what's not been used back in the fridge to use later (rewarming it again later)? How many times is it ok to do this? My ds sometimes manages to guzzle 4oz of ebm after his late feed and sometimes doesn't, but I usually don't freeze the leftovers but reuse them the next day. I never keep it more than 48 hours but I was worried about the rewarming and cooling.