SBS (sodium bisulfate) Pet™ Grade is a natural acidifier for the pet food industry used in dry cat food for feline urine acid ... ification and in soft treat and liquid digest for pH reduction and preservation. As a dry, granular, non-hazardous acid, SBS Pet™ can be added to the micro bin and mixed with the pre-mix, before extrusion, and delivers the added benefit of improved employee safety. read more