How to Rebatch Soap: A Step-by-Step Guide For Your Soap Making – VedaOils

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Rebatching Soap: How to Rebatch Soap

Soaps are very delicate products with a lot mix of ingredients and processes. It consists of a long list like cold process, hot process, liquid soapmaking,melt-pour breathing, and rebatching. Today you will learn the most amazing process that helps regenerate the same aromatic soap from the old, wasted, or left lot.

How to Rebatch Soap

Rejuvenating process, which saves you from lengthy procedures, entails shredding old soaps and incorporating them into new ones—a quick and easy methods on how to rebatch soap.

What Is Rebatching Soap?

Rebatching Soap is also known as hand milling, equivalent to French milling. The soap base or bought is transformed by shredding or dicing it finely or mixing it with a liquid, adding fragrance and color, and changing shape to produce a new soap. Rebatching soap is a process of creating new soap from the old batch.

Pros And Cons Of Rebatching Soap

Rebatching is a great way to use left over soap base. Here are some of the pros and cons of rebatching soap making.

Pros Of Rebatching Soap

Soaps are alkaline substances that help you remove grime and rejuvenate your skin. It is available in liquid, solid, or paste form to exfoliate your skin while providing aromatic pleasure. Rebatching offers many benefits that assist you in replenishing old soaps. Let’s dive into the details.

Pros Of Rebatching Soap
  • Colors present in the soaps are highly sensitive, according to the preferred ph of a particular skin type.
  • After the oils completely react with the lye, the scents, the colors, and all additions are applied and only introduced after most of the saponification process has been completed so that the corrosive lye does not damage the additives.
  • Light and delicate essential oils or fragrances can be used after rebatching because the soap has fragrance present from the initial process.
  • It gives you a way to experiment more with the perfume and color of the soap. Since the ingredients are melted like jojoba beads, the batch can produce unscented soaps in the ratio of 5-1 pound batches. This allows you to make five batches of soaps with different colors, textures, shapes, and fragrances.
  • The very important mistakes made in the previous process can be fixed easily. Including the lye or color, anything can be rebatched according to the preferred choice.

Cons Of Rebatching Soap

Have you ever considered the disadvantages of soap rebatching? Every process involves some technique or after-effects that isn’t very helpful. There are a few things to consider when it comes to Soap rebatching. To know more, let us see the following list of the cons of rebatching soap.

Cons Of Rebatching Soap
  • Rebatching leads to transformation but also deforming of the soap poured, which often leads to an unappealing appearance. The purpose of creating something new has yet to be fully accomplished.
  • Soap does not melt entirely. The residual gives it a gloppy, thick, and lumpy consistency which cannot be poured but need to be molded firmly.
  • Often it is noticed that air bubbles are trapped in the bars, thus making it difficult to give a smooth texture to the soap.
  • It is a transforming process, but it gives the choice to work carelessly—extra work to make the batch twice on purpose.
  • It could be more fruitful as the soap becomes rustic, and the purpose is defeated.

How to Rebatch Soap Using the Partial Rebatch Method

Soap makers are always careful with the soaps because the process involves precise work and dedication. Certain imperfections like faded color, less aroma, hard texture, and small or too big to use can be renewed with the rebatching of the soaps. Let us go through how to rebatch soap using the partial rebatch method.

How to Rebatch Soap Using the Partial Rebatch Method


  • Grated Soap - 230 Grams
  • Cold Press Soap Of Choice - 580 Grams
  • Sodium Hydroxide
  • Distilled Water

Directions: Step By Step

Step 1: Choose a new cold press soap of around 580 grams for the recipe. But it is optional; it depends on you.

Step 2: Grate the soap using the cheese grater into small pieces. Hand milling can be difficult, so that you can use a food processor. Now try the ratio 1:3.5 because it is easy to calculate the 40% of the new soap oils to the soap shaving to be used.

Step 3: Make the lye solution for the next step. Use goggles and rubber gloves and ventilate the area, like open windows or doors. Pour sodium hydroxide into the distilled water in a stainless steel pan and stir it properly. Let it cool to 100F.

Step 4: If the mixture needs solid oils, prepare soap oils using cocoa butter, shea butter, and coconut oil. Melt the butter and fats along with the olive oils and let it cool for a while(5-10 mins)

Step 5: Add soap shavings to the warm oil, mix it well, and let it cool a bit more. Blend the solution properly and add the lye solution to it.

Step 6: Keep bleeding the soap oils, watch the lye solution, and blend it well. Keep stirring and let it cool at 100F.

Step 7: Now prepare the soap. Take the lye solution mixture and add it to the soap oils and let the blender into the center for uniform mixing of the solution. Like a warm pudding, make sure to have consistency. This will keep the soap intact and will give a fine texture.

Step 8: Add any additives like essential oils, colors, or more.

Step 9: Now add the partial rebatch into the molds and let it cool and harden for at least two days.

Step 10: After that, take out the soaps, and you got your new batch of interesting soaps with you!!


The guide on how to rebatch soap is for you to understand the process, the importance, and how to experiment with your soaps in minutes. Often things you think are a waste can be transformed into a useful asset. Try this interesting method and spread the word like the beautiful soap aromas!!! Happy soap batching!!

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