No, I don't think skim milk is a byproduct of anything. With whole milk you can get whey and cheese. You can get butter and buttermilk. But skim milk has to be

No, I don't think skim milk is a byproduct of anything. With whole milk you can get whey and cheese. You can get butter and buttermilk. But skim milk has to be intentionally done. Im pretty sure.