I have no idea how it happened. I used the basic soap making techniques that I have used for most of my soap-making life. But when I added the lye-water to the oils I heard a "growling" sound, and the whole thing began to bubble and rise to the top of the pot. I stick blended it into submission, but it still wanted to erupt. I poured it into the molds. It looked like soap curds. It began to expand in the mold's cavities, as well. Using a plastic paint-scraper type thing, we kept directing the "soap" back into the cavities. Finally, it seemed to settle down, but it didn't look happy. I covered it with cardboard and insulated it. I have read about miracles on here when a disaster soap is allowed to go through gel and it ends happily ever after. I am hoping. Fortunately it was my first small batch - 9 bars. If it had been my usual 40-bar mold, I would have been alot more upset! Any ideas why it might have erupted?