Carrot Soap Recipe

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This is a basic recipe for a homemade natural carrot soap, naturally colored with carrots.

In the first recipes presented on this blog, only an oil/fat was used per recipe: see Homemade Olive Oil Soap Recipe, Homemade Coconut Oil Soap Recipe or Homemade Lard Soap Recipe.

With one oil only to deal with, the recipes become very easy, making the learning experience more focused in the chemical process itself and less on the logistics of having to deal with a lot of ingredients. 

It is possible to learn and understand the importance of preparing utensils and ingredients, safety measures – always use safety goggles, gloves and mask – , the temperature used in soapmaking process (cold process), how to reach trace, how to unmold and how to cure soap, when the soap is ready for use, etc.

The first recipes are also prepared to have a first contact with colorants and essential oils. Of course, their primary goal is to make wonderful soaps, which they do! 😀 

What You Can Find In This Recipe

Now we will increase the recipe dificulty just a little bit, and we will start using oils mixture, which allows to produce soaps more complete on its properties: better foam, better conditioning, better hardness, better cleansing properties. This is the standard in soapmaking actually.

We will also use a 100% natural colorant on this recipe: carrots!!! Unlike what might be expected, carrots will provide a yellow color to soap, not orange. Tones go from pale yellow to dark yellow/almost orange, depending on the ammount of carrots used in the recipe and its quality. There will be no carrot aroma, and the carrot’s properties as a vegetable will be mostly destroyed in the chemical process, but the color will stay.

The oils and butters used in this recipe are:

  • Olive oil – very conditioning and smoothing for the skin
  • Coconut oil – makes a soap hard and very cleansing
  • Castor oil – also cleansing but mostly improves foam
  • Sunflower oil – rich in vitamin E and very conditioning, and cheaper than the other oils
  • Shea butter – very conditioning as well and full of vitamins: A, E and F and antioxidants.

More Food Soap Recipes

Watch this video for Soap Making Safety instruction

Video in portuguese
Video in english

Watch this video for the Cold Process Soap Making tutorial

Video in portuguese
Video in english

Homemade Natural Carrot Soap Recipe

Sofia Matias
This carrot soap recipe is the first recipe on this website with an oil mix instead of a single oil, containing olive oil, coconut oil, castor oil and shea butter, which makes a wonderful creamy soap. It is colored by a 100% natural ingredient: carrots! Try this recipe and enjoy!
Difficulty: Easy
Weight: 450g (15,84 oz)
Superfat: 5%
Lye Concentration: 30% (considering water and carrot pureé together)
Prep Time 40 mins
Cook Time 30 mins
Curing Time 30 d
Total Time 30 d 1 hr 10 mins
Servings 6 soap bars
Cost $21,25 / 17,85€
Cosmetic Soap Bar
Method Cold Process


  • Immersion blender
  • Pyrex or stainless steel bowl
  • Heat-resistant jug or pitcher for lye solution
  • Pitcher
  • Digital scale
  • Digital thermometer
  • Measuring spoons
  • Rubber spatula(s)
  • Small strainer
  • Cup / bottle for after trace ingredients
  • Soap mold
  • Safety goggles, gloves and mask


Lye Water

  • 100 g distilled water (3,52 oz)
  • 64 g lye (100% sodium hydroxide) (2,25 oz)
  • 50 g carrot pureé (1,76 oz)


  • 200 g extra virgin olive oil (7,04 oz)
  • 150 g refined or organic coconut oil (5,28 oz)
  • 25 g castor oil (0,88 oz)
  • 50 g sunflower oil (1,76 oz)
  • 25 g refined or organic shea butter (0,88 oz)

Add After Trace

  • 8 drops grapefruit seed extract (GSE) or rosemary extract (RSO) (anti-oxidant)
  • 14 ml essential oil litsea cubeba/may chang (3 + 1/2 tsp)


Get Ready!

  • Wear goggles and gloves! Look at “Safety Recommendations” in the video above or in How to Make Soap From Scratch
  • Watch the video above about "Cold Process Soap Making tutorial" or read the post  How To Make Soap by Cold Process Step-by-Step for instructions on cold process soap making before starting. These are generic but important steps for all recipes.
  • Assemble everything: ingredients, equipment, safety equipment. Prepare your workstations. Measure all the ingredients. Don’t start the recipe without having everything ready!

Prepare the Carrot Pureé

  • Prepare some carrot pureé to add to the lye water: peel and slice a carrot and then simmer it in water (just like preparing boiled carrots). When it's soft, remove it from the water and make the pureé with an immersion blender.

Heat the Oils

  • Heat the oils to melt completely the solid oils.

Prepare the Lye Water

  • The remaining water from the boiled carrot can be used as part of the lye water, but you must use the water ONLY at room temperature.
  • Make the lye solution according to How To Make Lye Water, pouring the carrot purée into the water in the beginning. Mix it until the vapors start to dissipate. The lye water will turn into dark orange-brownish.

Make the Soap Batter

  • Use as a target temperature 40ºC for the oil-lye solution mixture. If necessary, you can reheat the oils, but not the lye solution.
  • Use a strainer to pour the lye water into the oils. The strainer will catch any remaining bits of carrot and lye.
  • Reach trace with the immersion blender.
  • Add after trace ingredients: the extract and essential oil (s). Stir with just a spoon.

Molding and Curing

  • Pour the dough into the molds using a pitcher and sprinkle with alcohol or witch hazel.
  • Optional step – Pre-heat the oven with 40ºC. Turn it off then place the molds inside: the color will be brighter if the molds are heat insulated.
  • Wait 48 hours, keeping an eye on the hardness of the soap.
  • Unmold and let the bars cure for 4 to 6 weeks. See How To Cure Soap for more information.
Keyword best soap recipes, best soap recipes cold process, eucalyptus soap recipe, handmade eucalyptus soap recipe, receita de sabonete de alecrim e eucalipto, rosemary soap recipe

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  1. Wow! I love homemade soaps and I would really love to make this! This is going to be a nice project. The curing process is a little long, 30 days. I have no experience with this, so I am guessing that 30 days is normal? What would be the best spot to cure the bars? A dry, shady spot?

    Can I get all the ingredients online?

    1. Sofia Matias

      Hello Christine and thank you for your comment.

      Yes, it’s normal for handmade soap bars to cure for 4 weeks (more or less 30 days). It’s a bit of time if you want to try the product right away, but this is worth the wait and 4 weeks actually pass in no time 🙂

      To cure soap, you can check out my article How to Cure and Store Handmade Soap, but yes a dry, shady place is a good one. In addition, it should have good ventilation, and bars should be kept with some space between them.

      As for purchasing the ingredients online, at the bottom of the recipe, you have links that show you where to buy each ingredient and also some of the equipment (about the lastest one, before buying anything, check out what you have in your kitchen already). I am assuming you have carrots and water (preferably distilled) available at home 🙂

      Hope you have as much fun as I did making this soap! Let me know how it went!

      Best Regards,

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