I froze extra milk during the season for use later in soaps and for us when the girls were dryed up. I've defrosted 2 bags of it and both were gross. The milk is frozen in ziplocs, flat. I defrosted the first one on the counter and the 2nd in the fridge. They both turned out looking like cottage cheese and separated. Any ideas? Do you think it got defrosted and re-frozen? Does it do this all of the time? Is there some magic way I'm supposed to defrost it? Is it too old? How long does it last frozen anyway?