Feed Grade Sulfur is recovered during gas manufacturing as a molten sulfur. It is then cooled on a stainless steel belt and forms into a flake form. The flakes are then taken off the belt and ground into sulfur powder. The sulfur is without additives and is regarded as safe as Animal Feed / an additive to animal foods. It is not considered suitable for human consumption. Sulfur is insoluble in water. Only mixtures in water can be made. Sulfur powder has a low flammability rating. It can be compared to wood in terms of flammability.