Grate the Soap:

Use a cheese grater or knife to finely shred the bar of soap. This helps it dissolve quickly in water.

Dissolve the Soap:

In a large pot, bring 4 liters of water to a gentle boil.

Gradually add the grated soap, stirring continuously until completely dissolved.

Add Sugar and Baking Soda:

Stir in 2 tablespoons of sugar to help thicken the liquid soap.

Add 2 tablespoons of baking soda to balance the pH and enhance cleaning power.

Incorporate Vinegar: