food grade

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  1. Dwilson9

    Food grade, Cosmetic grade, Pharmaceutical grade.

    When it comes to ingredients 'grades', which is best for bath bombs? I would have assumed pharmaceutical grade would be better because of purity, but is it? Is it even safe? I was reading somewhere that some food grade ingredients are better suited as opposed to the cosmetic grade of the same...
  2. R

    Lye quality - floating scum in lye water???

    I just switched from the Lye I purchased at the hardware store, which was packaged for drain clearing, to "food grade, high quality NaOH beads". These beads are almost 4x larger than the drain cleaner. I am also noticing that the water is not clean and clear after adding the lye and dissolving...