The process of cold saponification for an organic superfatted soap of quality

Cold saponification : a chemical reaction… 

The cold saponification is a chemical reaction between fats (vegetal oils in this case) and a base, caustic soda (sodium hydroxide) for bar soaps and lye (potassium hydroxide) for liquid soaps. This reaction results in two elements, glycerin and soap. We chose this process of cold saponification in order to preserve as much as possible the properties of the oils we chose to use.

Louise Emoi’s cold saponification :

A unique process

  • The choice to use a very old handmade manufacturing process allowing for a better preservation of the properties from the oils used
  • The choice to work with lower temperatures than what is usually done in cold saponification for a better preservation of the properties of the ingredients used
  • A curing time twice as long for an optimal drying process and an extended period of use
  • A 100% environmental-friendly process

Soaps of premium quality

  • Specific composition including vegetal oils in the finishing process to obtain a superfatting of 8 to 10%, perfect for the skin
  • Use of natural dyes

Recognized Knowledge

  • Perfect knowledge of the properties from each oil
  • Soap master’s training
  • A manufacturing process recognized by Nature et progrès

The cold saponification is usually done at room temperature. We have decided to work with lower temperatures than other soap makers in order to protect our raw materials.
This chemical reaction is absolute : it goes on until one of the two elements run out. It is therefore important to have more oil than lye, so it results into a superfatted soap and not a caustic soap. We use 5% less lye than the saponification level of the oil (this is the necessary amount of lye for the oil and lye to be entirely used) which may vary from one oil to the other, even for the same type of oils. Each oil has non-saponifiable components (which do not react with lye) which bring a specific property to the soap depending of the oil’s type. A good soap maker has a perfect understanding of vegetal and essential oils.

Some of our soaps have colourless active ingredients, for some others we add a dash of colors to the soaps thanks to natural dyes (honey, syrup, clay….)

A 10% superfatted soap, perfect for the skin

The superfatting of our soaps is obtained through two complementary methods : decreasing the amount of lye and adding valuable vegetal oil, which results into a superfatting of 8 to 10%, optimal for the skin. As we add these oils at the end of the manufacturing process, they remain entirely non-saponifiable. We have decided to work at significantly lower temperatures than required by the standards of cold saponification, in order to preserve all of our ingredients’ properties.

The curing process : an extended drying time

This cold chemical reaction is slower than in warm temperatures and therefore requires a curing time of at least 4 weeks, to not only for the saponification process to be completed but also for the soap to dry. The curing process for our soaps is ideally of at least 8 weeks because the dryer a soap is, the longer it can be used.

It is possible to distinguish a cold-processed soap from any other types of soaps with the logo available on the soap maker’s communication medium (packaging, flyers, internet website…).

The cold-processed are 100% biodegradable and do not participate to any water or earth pollution during their use. Our cold-processed soaps are made through an environmental-friendly, affordable, ethical and responsible approach.

Your favorite superfat soaps <3