Homemade Soap: How to Make and +12 Easy and Cheap Recipes

If you have used oil at home and don’t know what to do with it, know that you can make homemade soap! In addition to being biodegradable, you prevent it from being disposed of incorrectly. In addition, this is an excellent option to save on cleaning products. After all, you can also use vinegar, alcohol and even baking soda in the recipes.

As a result, we’ve separated 12 amazing recipes for you to produce your own soap that you can use to wash clothes and even dishes.

  1. Homemade soap with used oil;
  2. Homemade soap with vinegar;
  3. Homemade soap with alcohol;
  4. Homemade soap with baking soda;
  5. Homemade soap with lemon;
  6. Homemade soap with olive oil;
  7. Homemade soap from wood ash;
  8. Homemade soap with milk;
  9. Homemade eucalyptus soap;
  10. Glycerinated homemade soap;
  11. Homemade coconut soap;
  12. Homemade soap for washing clothes.

Homemade soap with used oil

Homemade soap with used oil.

This is one of the most sought after and most versatile recipes regarding its use. Thus, this type of homemade soap is excellent to help make pans shiny, helps to clean the stove and, if grated, can even be placed in the washing machine to make clothes whiter.


  • 200ml of hot water
  • 1l of used oil
  • 240g of 90% caustic soda

Method of preparation

  1. First, boil the water;
  2. Then, in a bucket, mix the hot water with the lye. Don’t forget to wear gloves during the process;
  3. After the soda has completely dissolved, add the oil and mix for 20 minutes;
  4. Finally, when the solution turns into a thick liquid, place it in a mold and wait for the dough to dry to cut.

Note: Used oil must be strained.

Homemade soap with vinegar

Bar with wooden brush.

Vinegar soap has the benefit of fixing fabric colors. Thus, it can and should be used to remove stains. In addition, it can also be used to make dishes shinier.


  • 1 cup of washing powder;
  • 1 cup of white vinegar;
  • 5l of used and strained oil;
  • 1kg of 90% caustic soda.

Method of preparation

  1. In a pan, heat the oil;
  2. In the bucket, mix the water with the washing powder until it is completely diluted;
  3. Then pour the solution from the bucket into the pan and add the vinegar;
  4. Stir without stopping until the mixture thickens;
  5. Finally, pour the contents into a shape and cut the next day.

Note: it is important that the step-by-step is followed in this order so that the recipe does not fall apart.

Homemade soap with alcohol

PET bottle with alcohol liquid.

This is one of the easiest recipes to make. After all, you only need a pet bottle to mix the ingredients. As a result, the mixture is perfect for easy cleaning of tiles, wood and even dishes.


  • 1l of used and strained oil;
  • 50ml 46% alcohol;
  • 250ml of water;
  • 150g of caustic soda.

Method of preparation

  • First, dilute the lye in warm water;
  • In a pet bottle, add the oil and half of the previous mixture;
  • Wait for the contents to cool, close the bottle and shake for the contents to mix;
  • Now open the bottle and add the rest of the mixture and the alcohol;
  • Close the bottle again and shake for approximately 20 minutes;
  • Finally, just dump the content into a mold and wait for it to dry before cutting.

Note: unlike other homemade soap recipes, this one should not harden overnight, and may take up to 7 days to be ready.

Homemade Soap with Baking Soap

Soap made with baking soda.

Baking soda is an ingredient often used for cleaning, including sofa cleaning. In addition, among the many benefits offered by baking soda, within this homemade soup recipe, it offers an antibacterial action. As a result, it becomes an excellent cleaning product.


  • 1 tablespoon of baking soda;
  • 75ml of neutral detergent;
  • 750ml of oil;
  • 100ml of ice water;
  • 170ml of liquid caustic soda.

Method of preparation

  1. First, mix the oil with the detergent in a bucket;
  2. Then add the lye and stir again;
  3. Now, in another container, dissolve the baking soda in ice water;
  4. Pour the new mixture into the bucket and stir until all the ingredients are integrated;
  5. Finally, put in a form and wait a day to cut.

Note: the amount of liquid caustic soda can be replaced by 150g of flaked soda.

Homemade soap with lemon

Bars and a lemon cut in half.

Want to brighten up your stove and pans? So, bet on homemade lemon soap. As it is acidic, lemon is widely used in the production of various cleaning products, especially degreasers. Therefore, it is worth betting on a natural option and, for sure, much cheaper.


  • 500g of caustic soda in scales;
  • 1l of lemon juice;
  • 3l of used and strained oil.

Method of preparation

  • First, in a pan, heat the used oil;
  • Second, use another container to dissolve the soda in the lemon juice;
  • When the contents are completely dissolved, mix it with the oil and stir for 25 minutes;
  • Finally, just put the content in a shape and wait for it to harden before unmolding.

Homemade soap with olive oil

Olive oil soap.

The liquid version of the homemade soap with oil can replace the detergent. So, to produce the recipe, just replace the oil used by olive oil. In this case, as olive oil is rarely used in large quantities to fry some food and, consequently, it ends up not being left, invest in new bottles of the liquid. So you can choose the cheapest option on the market.


  • 350ml of water;
  • 125g of caustic soda;
  • 900ml of oil.

Method of preparation

  1. First, dissolve the caustic soda in water and wait half an hour;
  2. In the pan or milk jug, heat the oil;
  3. Finally, add all the ingredients and mix until it becomes a dough;
  4. Now just put it in a mold and let it dry naturally.

Note: if you want to give a special scent to your recipe, add 5ml of an essence of your choice.

Homemade soap made from wood ash

Ash homemade soap.

Homemade wood ash soap is a recipe that is already known by many people. After all, it’s passed down from generation to generation. As a result, there is an excellent formula that helps in cleaning objects, especially pans and aluminum items.


  • 5l of water;
  • 2.5kg of wood ash;
  • 500g of caustic soda;
  • 5kg of tallow.

Method of preparation

  1. First, melt the fat over low heat;
  2. In another container, boil the water and mix it with the ashes. Bring to a boil for 1 hour and strain;
  3. Mix the water from the ashes with the hot fat and stir until the dough thickens;
  4. Then turn off the heat and add the lye;
  5. Finally, after making the mixture homogeneous, place it in a mold and wait for it to dry.

Homemade soap with milk

White soap and milk jug.

I bet you found this recipe a bit strange. But, if you want to have your dinnerware shining, this option is worth trying. In addition to being an alternative to the common soap we buy on the market, homemade soap with milk helps to save water. That’s right! The foam generated by this soap dissolves quickly, which means that you use less water to remove it.


  • 1kg of caustic soda;
  • 7l of used and strained oil;
  • 3l of milk.

Method of preparation

  • First, dissolve soda in milk. Continue mixing even when the milk appears to have curdled;
  • Gradually add the oil;
  • Stir sporadically until the solution looks like a thick mass;
  • Finally, just wait about 3h and put it on the forms.

Homemade Eucalyptus Soap

Homemade Eucalyptus Soap.

Homemade eucalyptus soap can be used for many things, including bathing. Did you find it strange? When you go to the supermarket, notice the amount of soaps that have eucalyptus in their ingredients, you will be surprised. And, to give it a scent, just add an essence of your choice. As a result, even when taking care of hygiene, you can count on a natural product.


  • 1l of used and strained oil;
  • 300ml of water;
  • 140g of caustic soda in scales;
  • 10 fresh eucalyptus leaves.

Method of preparation

  1. First, prepare some eucalyptus juice. For this, use a blender and beat the leaves with water;
  2. Then add lye and stir;
  3. Afterwards, put the oil into the mixture and stir for 15 minutes;
  4. Finally, put everything in a mold and wait for it to dry before cutting.

Glyceride homemade soap

Three colors of glycerin soap.

Perfect for daily washing of clothes, dishes and even some objects, this homemade glycerin soap recipe pays off. In other words, you also see the difference in your pocket when buying other cleaning products.


  • 40ml of essence with the scent of your choice;
  • 100ml of almond extract;
  • 50ml of liquid laurel;
  • 500g of white glycerin base;
  • 1 tablespoon of Shea butter;
  • Dye to taste.

Method of preparation

  1. First, chop the glycerin base and melt it in a covered pan;
  2. After all the ingredient has melted, wait for the contents to be warm and add the butter until it melts;
  3. Then add the laurel and essence;
  4. Still in the pan, add the almond extract and the coloring;
  5. Mix everything until it forms a homogeneous mass;
  6. Finally, pour everything into the desired shape and refrigerate until it is firm to cut.

Homemade coconut soap

Homemade coconut soap.

This is the most natural and least aggressive recipe compared to all the others in this article. Want to know why? Here, no oil or caustic soda will be used. Best of all, the ingredients are easily found on the market or even in your kitchen cupboard. This recipe is used for general cleaning.


  • 2 tablespoons of sugar;
  • 2 tablespoons of salt;
  • 1l of water;
  • 100ml of alcohol vinegar;
  • 1 grated coconut.

Method of preparation

  1. First, use a pan to boil the water and add the grated coconut;
  2. As soon as the water turns white, add the sugar, salt and vinegar;
  3. Then stir until it forms a thick, homogeneous mixture;
  4. Finally, just put it in a shape and cut it into bars once the product is solid.

Homemade laundry soap

Liquid soap for washing clothes.

Those who are used to shopping on a monthly basis know that cleaning materials, especially liquid soap for washing clothes, are not cheap. That’s why we brought you this recipe that uses several ingredients you already have at home.


  • 8l of water;
  • 100ml of alcohol vinegar;
  • 500ml of neutral detergent;
  • Half a cup of salt;
  • Half a cup of baking soda;
  • 1 bar of coconut soap;
  • 1 soap of your choice.

Method of preparation

  1. First, chop the soap and soap.
  2. Now, put them in a blender along with the vinegar and 1 liter of warm water;
  3. Once the dough is homogeneous, transfer the contents to a bucket and let it cool;
  4. Then add the detergent, mix and let it act for approximately 12 hours;
  5. Then, gradually put the mixture in a blender and add the rest of the water;
  6. Add the remaining ingredients and stir a lot;
  7. Finally, as soon as the foam decreases, just put the solution into a bottle for use.

Important Tips

Three homemade soaps and one with string.

Before finishing this article, it is worth remembering some observations and giving tips for better storage of your homemade soap. This way, it will last much longer, making you able to gather the necessary ingredients again.

  1. Wear gloves when making all recipes, even if they don’t have lye in the ingredients. This way, you avoid any kind of allergic reaction that can get your hands.
  2. Don’t forget to strain the oil before using it. As a result, you prevent any pieces of dirt from getting into your soap;
  3. It is important to follow the recipes step by step in order so that the result is as expected;
  4. Finally, when storing your homemade bar soap, avoid damp places. On the other hand, store them in cabinets or dry environments away from heat so that it does not dry out.

Have you already chosen your recipe to make at home? Be sure to also check out the tips on how to clean an iron and how to clean bathroom tile!


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