Here are the NSF approved food grade greases from Shell.

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Food Grade Greases from Shell
High Temperature Synthetic Grease Multi Purpose High Temperature Synthetic Grease
Water Resistant Grease Valve and Tap Grease
Water, Steam and Disinfectant Resistant Grease White Synthetic Grease
Very High Temperature Grease  

Shell Cassida EPS2
Outstanding protection against wear & rust, multi-purpose grease suitable for bearings under extreme pressure
Operating temp -35c to +120c (NLGI 2)
NSF Registration No. 92546

Shell Cassida EPS1
Outstanding protection against wear & rust, multi-purpose grease suitable for bearings under extreme pressure
Operating temp -40c to +120c (NLGI 2)
NSF Registration No. 119106

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