i travelled for a few days. i pumped and froze. some of the smaller bags defrosted a bit. now i have three 8 oz bottles and a 5 oz bottle in the fridge. my guide says defrosted milk is only good for 24 hrs. will i have to throw what he`doesn't use tomorrow away? and some of it had got a little slushy but not really defrosted so i threw that back in my freezer. my flight time had been like 6 hours total that the frozen solid had all been in a packed cooler. is this ok?