I made a loaf of salt bars one weekend morning. I knew they'd be ready to cut in 2-5 hours, but I had only 2.5 hours before I had to leave for the weekend. I was using a Brambleberry 5 lb mold with a sliding bottom and a silicone liner so that I had nice, crisp edges. I slid the soap and liner out of the mold before I truly realized how soft it was! I tried to maneuver everything back into the mold, but half of the soap ended up sliding up and out of the mold, creating a really tall mess of soap.
Since we were in a hurry to leave for the weekend, I let the soap blob sit and figured I'd think of something when I got home the following day. I did a lot of research on rebatching salt bars, but I seemed to only find instructions to crumble up the bars and use them in new soap batches.
I decided to try to rebatch in my crockpot, just to see what would happen. Since I had tried to rebatch only about 30-35 hours after I made the bars, they were not rock hard yet (my recipe is 80% coconut oil, 15% avocado, 5% castor, and 60% salt to oils - I think this lower percentage of salt kept the bars softer a little longer). I salvaged the half of the recipe that stayed in the same shape as it was poured. I painstakingly crumbled up the blob, stuck it in a crockpot on high, and let it sit for a half hour. I didn't add oil or water, since the bars were so fresh. Checked after a half hour, and it looked exactly like when I first put it in. Checked in another half hour. No change. Kept checking, and *finally* 3 hours later, the soap had completely melted and was in a perfect consistency to put in a mold. I made sure to mix up the melted soap again before I stuck it in the mold. A few hours later, it was ready to be cut.
What's cool is that it's very difficult to tell the rebatched salt bars from the original - the soap melted so well there were no textured pieces remaining to give away the fact that it was rebatched! I don't plan to rebatch salt bars going forward, but it's nice to know it can be done! I have only tried with relatively soft, fresh soap - I'm not sure whether this would work for older, more cured bars, though - if anyone has tried, I'd love to hear about it!
|The soap on the left is the rebatched salt bar - the one on the right is what I was able to salvage before The Rebatch.|