Rebatching soap is the art of rescuing a failed soap batch or of making new soap out of old soap. Though itâs not recommended after the soap has hardened, you could rebatch soap if you forgot to include your additives, didnât get yourÂingredients correct, got a false trace, or if you desire to mix soap batches for a certain appearance or fragrance. Every soapmaker rebatches differently and there are different methods according to the reason why youâre rebatching soap.
If you want to rebatch soap that hasnât had a chance to harden, try heating it again. If you didnât heat your soap to a high-enough temperature, you could have seen a “false traceâ in your soap. This means that when you tested the soap by dropping a scoop into the rest of the batch, the soap looked as if it had traced, but what actually happened was that the fat reached room temperature and began to solidify. So reheating and getting your soap to truly trace should take care of the problem.
If your soap is not hard enough, this means there was too much fat in the recipe. You could try packaging it as a lotion or a lip balm. If you want to rebatch your soap, melt it down and try to balance the lye-to-fat ratio.
If you get in the shower to test your first batch of soap and find that it doesnât lather, you donât necessarily have to rebatch your soap. A good soap doesnât necessarily have to lather to clean well. Sometimes a soap that lathers too much can dry out your skin.
Keep in mind that there are thousands of tricks to rebatching soap. Some soapmakers even make their own brands of soap using a rebatching process. Ever hear of French-milled soap? It is made from a specific rebatching process, that includes multiple rebatching steps. This process makes the soap milder and longer-lasting. The following instructions represent just one way rebatching soap can be done.
1.ÂGrate soap pieces. It should look something like crayon shavings with chunks in it. A small cheese grater works well.
2.ÂStir soap shavings with a little water in a stainless steel pot until you have a thin paste.
3.ÂPlace pot on low-medium heat and stir.
4.ÂWatch for the soap mixture to liquefy. If itâs too stiff, add more water and keep heating. If you add too much water, boil it off, but donât heat it
above 230 degrees F because it will be too hot to mix in the additives.
5.ÂRemove soap mixture from heat.
6.ÂStir in your additives. (If it starts to harden before your additives are stirred in, place the pot back on the heat.)
7.ÂPour soap mixture into molds.
8.ÂCover your soap with plastic wrap and let it sit for 48 hours.
9.ÂPop soap out of molds. If your soap wonât immediately separate from the molds, place them somewhere cold for about two hours.
10.ÂPlace the soap bars in a cardboard box lined with waxed paper. Place in a warm, dry area that wonât be disturbed. Let the soap cure for at least six weeks.
11. ÂUse litmus paper to test the lye content of your finished soap. Be sure to wash off any soda ash that has formed before testing, as soda ash has a high pH value.
If your rebatched soap warps as it dries, try placing soap in a container with a lid to allow for minimal air flow.
Excerpt from the Popular Farming Series magabook Goats with permission from its publisher, BowTie magazines, a division of BowTie Inc. PurchaseÂGoats here.
Also recommended:
Goat-farmer’s Cheese Recipe
How to Make Goat-milk Soap
Goat-milk Chive Butter Recipe
Goat-milk Mozzarella Recipe
