What causes this texture?

[greasyspoon42]

I am pretty sure it is air bubbles but want to make sure. I test with small batches about 385g of oils. I then pour into this mold. I think cause of the small size air gets whipped in, but it only seems to be on the edges, I do not have bubbles through out the soap. That’s is the only reason I think I may be wrong. Even small batches I use CPOP. This was my first test with tallow as my main oil so I was not sure if that was a cause either.

 

[Nona'sFarm]

I had something similar when I forgot to turn off the oven for CPOP. Am interested in what others have to say, as I've never used tallow. I no longer use the oven to gel; I use a heating pad and a box overturned to keep in the warmth.

 

[DeeAnna]

This is not air bubbles whipped into the soap batter.

This is "silicone rash" caused by CPOPing soap in a silicone mold for too long and too hot. This soap has a fairly bad case of this rash, compared to what I normally see on this forum.

If you must CPOP, preheat the oven to a lower temperature and turn the oven off before putting the soap in the warm oven.

 

[AliOop]

Ditto on the silicone rash. Like @Nona'sFarm, I also prefer to use a heating pad and an overturned box, rather than the oven.