This definition appears very rarely
Samples in periodicals archive:
Hauling Food Grade & Kosher Products. In the food industry, cleanliness and security are of the utmost importance. Jade Transport has been actively hauling food grade...
Amazon.com : Vegetable Glycerin Food Grade 99.7+% Pure Kosher - 1 Gallon : Personal Care Products : Beauty
SUNFLOWER OIL. Synonyms: Non-hydrogenated Vegetable Oil (Sunflower Oil) Principal / Manufacturer: Argentina, EU, Ukraine; Grades Available: Food grade, Kosher