Here is a qustion for soap makers. I am trying to make soap out of the waste glycerine. I boiled 2 liters glycerine at 160 degrees F for about 15 minutes. Is this enough time to evaporate all the methanol out? How do you know when its been evaporated. I then combined 50 grams of lye/liter of glycerine when both were at temps around 100 degrees F and poured into the bottom of a plastic jug. Looks like I have round disk of soap. I think I'll try adding fragrance to the next batch to see if its workable, just wondering about the methanol being gone-which I'm assuming it is. Any comments or suggestions? Thanks in advance-PC
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