If a non-toxic (but also non-food) wax crayon is known/suspected to contain both meat (e.g. stearic acid; see e.g. here) and milk (e.g. dairy-derived palmitic acid), may one use it or does it qualify as issurei hanaah (forbidden from benefit)?


  • 5
    Stearic acid is not meat, palmitic acid is not milk. Additionally there are not at an edible stage, there are degraded from a eaten point of view.
    – kouty
    Commented Jan 7, 2019 at 5:58
  • 1
    non toxic is not synonym of food, edible, e.g. a stone may be non toxic, wood may be non toxic.but there are not food even for a dog
    – kouty
    Commented Jan 7, 2019 at 6:10
  • @kouty With sources, I'd accept your comments as answer(s).
    – Loewian
    Commented Jan 7, 2019 at 14:43
  • I think we can all source that
    – Dr. Shmuel
    Commented Jan 7, 2019 at 15:20
  • I haven't looked at each link that you placed in your question. But, I think we can logically deduce that if a non-edible food wouldn't make the oven non-kosher, then there shouldn't be a problem handling it. I think all this follows the same rules.
    – DanF
    Commented Jan 7, 2019 at 22:28


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