Black soap: an excellent all-purpose cleaner

05 Apr 2021

Savon noir liquide dans un bol / Liquid black soap in a bowl The liquid black soap is an all-purpose cleaner. It is made up of potash and some fat. The combination of the two through the classic saponification process produces household liquid black soap.


Black soap, a natural and economical cleaner for the house

Because it is made from natural ingredients, it is completely ecological, but also gentle on the surfaces as well as on the user’s hands. It can be used on all surfaces such as:

  • Ceramic tiles,
  • Linoleum
  • Marble,
  • Wood floors

  Simply dilute 2 tablespoons (30 ml) in 5 L of hot water. Wash and let dry without rinsing.   It is also very useful for degreasing:

  • The cooking top,
  • The oven,
  • The work surfaces,
  • Cooking accessories and even the barbecue!

  Just pour 1 teaspoon (5 ml) on a sponge and scrub to degrease, rinse.


Black soap, an effective outdoor cleaner

Liquid black soap is effective for cleaning patio furniture directly outside or the exterior of the house without worrying about the environmental impact. Simply dilute 2 tablespoons (30 ml) in 5 L of hot water. Use this solution to scrub your patio furniture or siding with a brush and rinse.  

For a perfect window cleaning


  • Add one tablespoon (15 ml) of black soap to one liter of warm water.
  • Clean the windows by using a cloth to clean and another dry cloth to dry.


For plants

Black soap is useful and effective in controlling aphids, mealy bugs and red spiders. Being a contact insecticide, it kills the larvae and cleans the honeydew on the leaves. Instructions:

  • Dilute 5 tablespoons (75 ml) of black soap in 1 liter of hot water.
  • Pour this solution into a spray bottle and let cool.
  • Spray this solution on the leaves, right side up.


To keep spiders away

  • Add 20 to 25 drops of peppermint essential oil to black soap and add one liter of water, while mixing well.
  • Wash the surfaces and rinse while leaving a very light film. The residue of this solution will be less inviting to spiders and they will seek residence elsewhere!


For animals

Black soap is an excellent shampoo for dogs and cats. Soft on the skin, it will make the hair shine and reduce “wet dog” smell. Being concentrated, a small amount is required. Note that it also has antiparasitic properties. Please note that it is possible to add certain essential oils for use on dogs, but they are strictly prohibited on cats! Ask your veterinarian, however, certain essential oils are prohibited for animals.  

Cleaning the car

It is possible to wash the car in an ecological way, using a minimum of potable water. Dilute 2 tablespoons (30 ml) in 5 liters of water. See the full article here.

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