“My grandmother freezes her milk - anyone know how long that lasts in the freezer? Does it taste good?”
I used to freeze milk back when I was in college. It seemed to last pretty much indefinitely, but I wouldn’t freeze it for more than say 6 months to a year. It tasted OK. Not as good as fresh and you needed to shake it up as the water would would separate from the milk solids. These days, I’d just buy UHT milk boxed if I were looking to store it.
Don’t forget canned milk; it is very good to cook with. Powdered milk also works great for storage. I froze a lot of milk when my grandson was little- works fine if you let it thaw completely and then shake it to mix it well before using. If things do get desperate though to really keep going we will get another cow. I love fresh butter and cream but haven’t had a milk cow since my kids were little. We just don’t use enough milk and butter now to justify a cow.