Glad someone bumped this. Good post.
One note though. Tallow doesn't have to come from around the kidneys. It just means rendered beef fat. Some people use it even more broadly to cover all rendered animal fats (other than lard) calling it "Beef Tallow". Kidney Tallow is reputedly the best for soaping though.
Wish I had a source for beef fat these days... though I doubt my roommate would appreciate rendering it here.
One note though. Tallow doesn't have to come from around the kidneys. It just means rendered beef fat. Some people use it even more broadly to cover all rendered animal fats (other than lard) calling it "Beef Tallow". Kidney Tallow is reputedly the best for soaping though.
Wish I had a source for beef fat these days... though I doubt my roommate would appreciate rendering it here.