If you like the results of the lye test, move on to the oil test. Heat up about 4
ounces of oil – be sure to use whatever oil you plan on using in your recipe, so that
the results will be accurate. Add the colorant as you did with the lye mixture, and
check the solution at the same intervals.
If you like the way the colorant reacted with both the lye and the oil, then it might
be time to move on to testing the colorant in a small batch of soap. If the colorant
reacted better with the lye, then add it to the lye-water mixture, before it is mixed with
the oils. If the colorant reacted better with the oils, then add it to the base oils, or add
it at trace. As always, take note of how much you used, when it was added, and what
the results were; this way, you’ll be able to duplicate the results, or make any necessary
changes.
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