Is this DOS?

Todd Ziegler · Apr 7, 2020

I was doing my weekly check & turning of my soaps and noticed this on a few bars

There's no rank oder that would indicate rancidity, they smell like there supposed to, vanilla. They are 6 weeks old and I have them in a box, single layer with setting on top of a drawer liner so the air can circulate, with a fan blowing air through all of them. The only thing I can't remember is if I had them sitting on a wire rack without a liner of some kind. They are some of my first soaps, so they may have set on a bare rack. It only seems to be effecting the surface.

The recipe is 50% lard with CO, SO and castor oil.

lsg · Apr 7, 2020

Todd, I didn't see a picture and you didn't include the recipe; but it may have been the contact with an unlined metal rack.

shunt2011 · Apr 7, 2020

Metal will most certainly cause an issue if in contact with your soap. I don't see a photo either.

Todd Ziegler · Apr 7, 2020

Sorry forgot to load the pictures.

Todd Ziegler · Apr 7, 2020

lsg said:
Todd, I didn't see a picture and you didn't include the recipe; but it may have been the contact with an unlined metal rack.

It is 50% lard, with CO, SO and 5% castor oil

lsg · Apr 7, 2020

It doesn't look like DOS to me.

shunt2011 · Apr 7, 2020

I don’t think it looks like DOS either. Not sure what it is. It looks similar to your other colors so hard to tell.

DeeAnna · Apr 7, 2020

I agree with the others -- doesn't look like DOS to me either. If the colors in the photos are true-to-life, it almost looks like a little bit of extra pink (or red?) colorant that was concentrated on those corners. Or something like that. Especially the bar in the photo with the yellow circle.

Todd Ziegler · Apr 7, 2020

Thanks for the reply. I also thought that it could have been some color that pooled for some reason. Because there were some bars that were just slightly darker m