Q: What would cause a batch of soap to erupt while in the soap mold?

A: Boiling inside sounds like a normal, very impressive gel phase. We had some really great volcano soap that made a beautiful tunnel when we finally cut into it.  My gel phases normally get to about 180º so I’m surprised yours stayed so low! Did you switch lavender essential oils? I normally find that my lavender does the opposite – and actually decreases the temperature of the overall batch.

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