What does food grade mean?

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Posted by Scott @ heelspurs on May 29, 1998 at 17:07:07:
I bought a 55 pound box of ascorbic acid (vitamin C) for $267 for me and some friends from a chemical supply house. It's food grade. Unfortunately, it has a tint to it that pharmaceutical grade doesn't and it's made in china. Does anyone know the definitions of pharmaceutical and food grade?




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