“Huff & Snuff” killer dean Coryl stupicly tried to use barn lime, which only preserved the bodies. A better method would be those worms/maggots used by forsensic detectives (I forget which breed - haven’t see “Gorky Park” for a while.), leaving only the bones, which can easily go into a 13-gallon plastic garbage bag.
What I’d use in a pinch: Classic Coke.