Bare Metal Surface Cleaning Salt

I have spent years working around commercial kitchens, and one thing I have learned is that grease does not just sit on the surface. It soaks into every crevice of the exhaust system, hardening into a crust that can ignite without warning. That is why the National Fire Protection Association created NFPA 96, the standard for ventilation control and fire protection of commercial cooking operations. Among its many requirements, the standard calls for a level of cleanliness tha