Cold soap making process

First discovered thousands of years ago, soap has appeared in varying forms over time, in the Mediterranean. It is formed from the natural or provoked chemical reaction known as the saponification of fatty substances.

Cold soap making: the process

Amongst the various soap making processes, cold soap making is a natural method of soap production.

It consists of a mix of fatty substances and a strong base, usually sodium hydroxide (lye or caustic soda) for solid soaps and potassium hydroxide (potash) for liquid soaps. The fatty substance (vegetable oil, animal oil or butter) undergoes an irreversible transformation on contact with the lye or potash.

This chemical reaction, called alkaline hydrolysis, is complete, that is to say, it continues until one of the ingredients is completely dissolved, and it takes place by heating the ingredients together to a temperature of 40°C, hence the name cold soap making.

The mixture obtained is poured into a mould. After around 24 hours, the “gel” stage produces partially or totally solidified soap and allows it to move on to the cutting stage. The soap is then dried at room temperature for four to eight weeks.


The advantages of cold soap making

Cold soap making doesn’t lead to the discharge of glycerol. It allows the soap to preserve its natural vegetable glycerine. This means that it is what is known as a “superfatted” soap: it maintains all of the moisturising and nutritional qualities of the fatty substance it contains.

As well as being easy to make, it is also very cheap to produce and generates neither waste nor residue. The vast number of different vegetable and animal oils available makes it possible to create a wide variety of soaps.

The addition of specific ingredients to the “trace” product, such as essential oils, colourants, etc., allow for the creation of soaps with very different cosmetic, aromatic and aesthetic properties.


Our oils in cold process soaps

Plum Oil

Oil-plum thumbnailWith 15 mg of Vitamin E per 100 g of oil, our plum oil provides all that is required for the regulatory functional claim relative to the protection of the cell membranes. Plum oil-based soaps are nourishing, softening, soothing and help maintain the elasticity and suppleness of the skin.

Find out more about prune kernel oil…


Plum Butter

Plum oil butterCreated using plum oil and shea butter, this plum butter has the dual properties of both of its original ingredients. Soaps made using this butter possess anti-oxidant and moisturising qualities. It is both nutritious and intensely softening to the skin.

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Prune Kernel Powder

Perles en Gascogne prune kernel exfoliating powderObtained by grinding the shells of Ente plum stones, this kernel powder is exceptionally rich in aroma. With three grades of grain (<300µm, 300 to 500µm, 500 to 800µm), it can be used to create gentle or more abrasive exfoliating soaps, according to the grain size.

Find out more about Kernel Powder…


Organic Inca Inchi Oil

Perles en Gascogne virgin Inca Inchi oilVirgin Inca Inchi oil is richest source of Omega 3 currently available on the food market! Consumed regularly, it helps prevent cardiovascular diseases and promotes cell renewal.

INCA INCHI oil provides the soap with strong antioxidant properties. It intensely moisturises and nourishes the skin and promotes tissue regeneration.

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Walnut Oil

Bottle of Perles de Gascogne walnut oilNaturally rich in unsaturated fatty acids (Omega 6, Omega 9) and Vitamin E, walnut oil has reparative, softening and antioxidant properties. It is an excellent base ingredient for shampoo bars.

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Hazelnut Oil

Perles en Gascogne virgin hazelnut oilComposed of 75% oleic acid (Omega 9) and naturally rich in Vitamin E, hazelnut oil is recommended for dry and sensitive skins. The soaps derived from this oil promote skin healing and repair and help prevent ageing.

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Organic Hemp Oil

virgin hemp oil

Organic virgin hemp oil

Our organic virgin Hemp Oil is composed of 1200 ppm of tocopherols, that is to say 20 mg of Vitamin E per 100 g of oil. As well its high Vitamin E content, this oil is rich in Omega 3 and Omega 6. Organic hemp oil provides its soaps with regenerative, anti-free radical, softening, soothing and protective properties to benefit the skin.

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Organic Camelina Oil

Thumbnail_CAHBVIOrganic Camelina oil derives from an oleaginous species called Camelina Sativa, cultivated in South-West France using organic agricultural methods. Especially recommended for children, sensitive or ageing skins or skin affected by atopic conditions, this oil provides its soap with softening, anti-inflammatory, softening and reparative properties.

Find out more about organic Camelina Oil…