Cold Process Soap Recipes

A Better Recipe For Cold Process Salt Bars

positano salt bar 2The first time I tried making salt bars, I was just a beginner at soap making. I only used a 10% superfat and the soap made my skin really dry. Ever since then I’ve been kind of iffy about trying salt bars again. And I resolved that if I did try again, I was going to use less coconut oil, even if the lather suffered for it.

So I stalked some Facebook groups for conversations on salt bars and found that not everyone uses 100% coconut oil in their recipes. Yay! So armed with that knowledge, I came up with a new recipe, dropping my coconut oil down to 75%; and I came away with a soap I really enjoy.

75% Coconut Salt Bar Recipe
I had planned to use all white salt when I made this soap, but discovered I only had about 12 ounces of regular sea salt. Oops! But I had this other pink Himalayan salt, and since the pink salt would color the soap, I decided to do a two-tone soap instead of a solid pale pink bar.

After combining the lye and oils, I added my fragrance and split the batch in two. I added my mica to one half and added the white salt to it. Then I filled each soap cavity halfway. After that, I added the pink salt to the other half of my batter and filled the cavities the rest of the way.

And you know what? This soap has lots of lather and just the right amount of exfoliation. I love it! I think I could have cut the coconut oil to 50% and it still would have worked. I guess I’ve got an experiment for another day, but I’m going to roll with this recipe for now and make some more scents with it.

If you’d like to try this soap before you make it, I’ve listed them for sale here.

Cold Process Soap Recipes

How to Rebatch Soap in the Oven

ugly soap
They can’t all be beautiful, I guess.

I messed up a soap recently…I purchased a salad shooter and made the mistake of soaking my soap shreds before adding them to my soap. Of course, they turned to mush and looked awful in the soap. I shouldn’t have added them at all (another case of I should have gone with my gut, but didn’t). I decided it wouldn’t sell looking like that, so I’d better rebatch it. I had only had to rebatch soap once before – I used the crockpot and it got really dried out, so I wanted to try a different method. After reading through the Bramble Berry guide to rebatching, I decided to try the oven method at the bottom of the tutorial.

I had two loaves of this disaster soap, but after cubing up one loaf, I realized only one loaf would fit in my baking dish. So I did one loaf at a time. With the first loaf (3.2 pounds), I added a cup and a half of water (which is about 1/2 C per lb of soap).

This is less than the tutorial recommended, but I felt like 1 cup per pound of soap was an awful lot of water.

rebatch soap
Cubed soap ready for rebatching.

Turns out, even the amount I used was too much water. I froze the soap the next day to get it out of the mold, but it’s been sitting on the counter for three days and it’s still very soft. *sad face*

So the next day, I rebatched the second loaf using only a half cup of water total. This one turned out much better. So, here is the process, all laid out:

Rebatch Soap in the Oven Tutorial

Step 1: Preheat the oven to 200 degrees.

Step 2: Cut your problem soap into cubes and place them in a baking dish.

Final result.
Final result. It looks like hot process, huh?
Step 3: Add 2.5 Tablespoons of water per pound of soap.

Step 4: Cover your dish with foil.

Step 5: Bake soap for 35 minutes, stir and bake an additional 35 minutes. Stir again.

Step 6: At this point the soap is going to be the texture of hot process soap. You are now ready to add color and/or fragrance to your soap and scoop it into your mold. Be prepared to work quickly. Just like hot process soap, rebatch soap likes to get firm quickly. You could add a little sodium lactate to the melted soap to keep it fluid for a little longer.

I still froze the soap the next day to get it out of the mold, and then let it sit overnight. I was able to cut it the following day with no issues. One day later, the bars are softer than a regular bar would be, but I know it will harden up soon. The first batch…time will tell. That one might get pitched.

rebatch soap top
I added glitter for good measure. And that’s Layla (she’s being super needy and won’t let me take a photo without her).
Notes: My soap was only a few days old when I did my rebatch. That may be why I only needed 2.5 Tablespoons of water per pound of soap. If your soap is fully cured, or even older than that, you might need more water than this. I haven’t tested it, so I don’t know for certain, but it does seem logical.

Who else hates to rebatch soap? Do you have a better method? Please, share it in the comments!