After you open it you need to refridge it, or you seal it in canning jars with an o2 absorber and keep them in a cool dark place like a basement.It is fat free.
What about after it's opened? Can it be frozen?
Az
Packed right and kept out of the heat, it'll last decades. I recently used up some powdered milk that was just put in a bucket with O2 absorbers, no mylar. It was forgotten in the hot shed since the late 1990s. Even with that kind of abuse, it drank fine. I wouldn't worry about that for many more years unless it has been stored in the heat all this time, in which case, I'd say drink it up and replace it.I've got a pretty good size can of powdered milk in my preps that has a date of 12/11 on it. Will it last longer than that? How about if it's unsealed and frozen?
Az