So I decided I want to try to make a batch of bar soap with some of my glycern. While draining off the glycern tonight I got some biodiesel in it at the end. I have about 1/2 a cubie of glycern and I can see there is about 1/4 inch of bio on top.
What do I have to do to the glycern now that I want to use it for soap? Is that Bio ok in there?
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Clint, you do need to separate the bio and glycerine. One way is to pour it into something that has a drain in the bottom, let it settle and drain the glycerine, stop before you get to the bio. YOu could use a 2 liter coke bottle, cut the bottom off, screw a cap on (or put one of those tops off of a sports drink that pulls open), turn it upside down and fill. Let it settle and loosen the cap and drain.
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You need to drain the glycerol more slowly, and when you think you're near the end of the glycerol drain it into something else. Its very easy to get some biodiesel coming out with the glycerol.
I have noticed even after overnight settling, the first 5 gallons(set aside in it's own jug) of 13 gallons drained off will have about 1 inch of BD float to the surface. So, that re-settling would be a good idea.
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