I've still not seen an answer to an earlier question. We've pretty much established that sealer caskets are extra large "crock pots". But, when you put a wooden and or non-sealer metal casket in the ground and in an AIR TIGHT VAULT......don't you get the same "stew" even though you've selected a casket that doesn't seal? Aren't those deluxe, heavy duty, plastic,steel,copper and bronze lined vaults every bit as bad as sealer caskets? Seems like a wooden casket and porus concrete, non seal vault would be the best bet.