can you thaw frozen milk on the counter/room temp? just froze it this morning and I always freeze the bags in a dish just in case they leak and one did so I'd like to use it sooner rather than later (and get my freezing dish back). stuck it in the fridge for now. btw This is the first leak I've had wth the medela bags. I prefer the kiinde twist, absolutely love them, but I have only a few left and they're expensive so I figured I'd use up the box of medela bags first.