We are processor of Raw almonds. Does huller and sheller motors, bearing needs food-grade oil/grease since it is a harvest process? H1 lubricants are only for food product contact surfaces and H2 are not direct food contact surfaces. After accessing the plant if we found that our machines falls under H2 category would you recommend H-1 grade oil/grease since its a higher grade oil. Please advise. What would be the risk of applying H-1 category lubricants on H-2 category machines or equipment.