Plain bar of curd soap

Magazine · Soap & Household

Curd soap: one bar, half a household

The plainest bar of soap is one of the most useful. What curd soap can do, and where it does not belong.

The short version

Curd soap is pure soap without superfatting or additives. That makes it a household all-rounder: pre-treating stains, laundry, a base for your own cleaners. For exactly that reason it is not for daily skin care, where natural soaps are the better choice.

Few products are as cheap and as versatile as a plain bar of curd soap. While natural soap scores on care, curd soap is the diligent worker: it tackles stains, laundry and coarse dirt, and forms the base for many homemade cleaners.

The reason lies in how it is made. Let us look at what sets curd soap apart from a nourishing soap, then it is clear where it shines.

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What makes curd soap special

During saponification, oil reacts with a lye to form soap. In care soaps some oil is deliberately left over, the superfatting that nourishes the skin. Curd soap, by contrast, is almost fully saponified and contains neither superfatting nor fragrance or dye. It therefore cleans strongly and neutrally instead of leaving a caring film. In the household that is an advantage, on the skin a drawback.

Where it shines

Pre-treating stains

Dampen the stain, rub in curd soap, leave briefly, wash as usual. Works on collar grime, grass and much more.

Laundry base

Grated, with washing soda and water, it becomes a simple liquid detergent. Gentle on textiles.

All-purpose cleaner

A little dissolved in hot water makes a gentle cleaner for floors and surfaces. More ideas in the soap guide.

Coarse & outdoors

For very dirty hands, tools or garden gear. Strong, cheap, indestructible.

Pre-treating a stain with soap
The classic pre-treatment: dampen, rub in, leave, wash.

Recipe · simple

Liquid soap from curd soap

You need

  • 1 tbsp grated curd soap
  • 500 ml hot water
  • optional 1 tsp washing soda for more grease-cutting power

How to

Dissolve the grated soap in hot water, stir well, let it cool. Pour into a pump bottle and shake before use. Too thick? Thin with a little warm water. Important: do not mix with acid.

Not for daily skin care

Because curd soap is not superfatted, daily use dries the skin out. Occasional hand washing is fine, but for regular care reach for a mild natural soap such as Aleppo soap.

Recommendation

Spotting good curd soap

When buying, simplicity is what counts. What to look for:

  • A short ingredient list, without fragrance and dye
  • Plant-based rather than animal tallow, if that matters to you
  • Cheaper in a multipack, and it keeps practically forever
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Frequently asked

What is the difference between curd soap and natural soap?
Curd soap is not superfatted and cleans strongly, ideal for the household and stains. Natural soap is superfatted and nourishes the skin. For daily body care, natural soap is the better choice.
Can I do laundry with curd soap?
Yes, grated and turned into a liquid detergent with a little washing soda. It is gentle on textiles, but reaches its limit with heavily soiled or white laundry.
Is curd soap vegan?
That depends on the variety. Traditionally tallow was used, but many curd soaps today are purely plant-based. A glance at the ingredient list tells you.
Can I mix curd soap with vinegar?
No. Soap and acid curdle and cancel each other out. Use curd soap to clean and a separate acid like citric acid for limescale.
MS
Magic Soap editors
We write clear, honest guides about soap, care and natural cleaning. Our recommendations are made independently, tested and fairly judged.

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