What does "food-grade" mean?

Suitable for human or animal food.

Food-grade

Common synonyms include: culinary grade, edible goods, food, food contact safe, food safe, food-grade alternative.

adj

adj ·Rare ·Advanced level

Adjective

1
Suitable for human or animal food. not-comparable
"food-grade rice starch"
2
Permitted to be used with or to contact food; safe for use with or around food. not-comparable
"food-grade plastic"

"Kelcogel food-grade gellan gum is described for special uses in the food industry."

From food + grade. Originally US.