Clean & natural
Discover the recipe for Marseille soap-based multi-surface ecological liquid soap, a natural, economical and zero-waste solution for effective cleaning throughout the home. ✨
Essential ingredients for an effective multi-surface soap
In the recipe :

Marseille soap
The star ingredient.

Bicarbonate of soda
Natural degreaser and deodorizer.

Soda crystals
Restores shine to tarnished surfaces.

Black Soap
Cleans, degreases and shines without rinsing.
Step-by-step recipe:
Melt Marseille soap
In a heatproof bowl, pour 200 ml boiling water over 10 g grated Marseille soap. Allow to melt slowly, while stirring.
Preparing the alkaline base
In a separate container, mix 250 ml cold water, 1 tbsp baking soda and 1 tbsp soda crystals. Stir until completely dissolved.
Mix the two preparations
Gently pour the bicarbonate base into the melted Marseille soap mixture. Then add 250 ml EPUR liquid black soap.
Homogenize and package soap
Blend to a fluid, slightly creamy texture. Allow to cool before pouring into a pump bottle or old reused can. Your multi-surface ecological liquid soap is ready to use!
How to use liquid soap
Compatible surfaces
This cleaner can be used on all washable surfaces: worktops, tiles, glass, stainless steel, washbasins, showers, taps…
Tips for use:
- For floors, dilute 1 capful in hot water.
- For surfaces, a dab on a sponge is enough.
Precautions to be aware of
Avoid using on porous surfaces:
- rough lumber
- marble
- limestone
These materials do not like alkaline products.
Fragrance & shine tips
Essential oils: Add 5 to 10 drops of essential oil for a touch of natural fragrance.
- Lemon – fresh & antibacterial
- Lavender – relaxation & cleanliness

White Vinegar
For streak-free glass or stainless steel, wipe with a cloth soaked in white vinegar after cleaning.
Frequently asked questions (FAQ)
Can black soap be replaced by another ingredient?
No, black soap provides the degreasing power and shine.
It is essential to the recipe.
What is the shelf life of homemade liquid soap?
Approximately 6 months, at room temperature, in a sealed bottle.
Is this cleaner suitable for pets?
Yes, because it contains no synthetic fragrances or toxic substances.
Can vinegar be added to the recipe?
No, because vinegar is acidic and would neutralize the bases (bicarbonate and soda crystals). Use separately.
What texture do you want to achieve?
A fluid, slightly creamy texture, easy to pour or pump.
Where can I find the ingredients?
All ingredients (black soap, Marseille soap, baking soda, soda crystals)
are available in organic stores or on the official EPUR website: epurbiosolution.eu

