I got inspired by a YouTube video where the person rebatched or handmilled their soap. I thought I'd try again. I shredded up a bunch of old soaps and used my slow cooker. I shredded up 2 lb 4 oz of soap which was all at least a couple of months old. I think throughout the cook I added 5/8 cup of water.
I wonder if the slow cooker dries out the soap too much. I think it was cooking for 3 hours before most of the chunks were melted. As soon as I started to glop into the mold it was hardening up. I even preheated the mold so that the soap wouldn't be hitting a cold mold. But still I had to really glop and push into the mold. This batch I kept to fruity smelling soaps and I added satsuma FO to it.
I still have more soaps that I could rebatch, I have some more with bakery type scents that I could melt together. Maybe I'll try using more water next time. I just don't want to add too much water, then it will take longer to dry out. Got to find that balance.