I have a stash of milk I pumped back in June from when I was eating dairy and before LO was diagnosed with MSPI. Now she seems to have outgrown it, and I'm not sure what to do with the ~60 oz of milk in the freezer. I defrosted a few ounces and it smells okay, but I'm nervous to give it to LO after 7 months in a regular freezer..... will it be obvious if it's spoiled?