The meat can be unfreeze & not wasting of meat juices & decomposition of smell by 7 days ripening of raw beef on vaccum packing condition, Its color not to be black even after 30~60 days. It will the best taste of raw meat. The freeze meat not to be wasted of meat juices if it defrosted in manna system. It can be the best taste of food in the world. Tuna can not be black even after 30days, It will be the best taste of tuna.