Why does facial soap draw lines? The difference between hot-process soap and cold-process soap

There are many cleansing products that we can use now, such as ordinary facial cleansers, but in addition to facial cleansers, there is a kind of facial soap that is very popular in our lives. So, why does facial soap become stringy?

Why does facial soap draw lines?

Thread drawing indicates that the soap body contains a high content of soft oil, such as hazelnut oil, olive oil, avocado oil and other oils. The soap feels moisturizing after washing, the soap liquid is viscous, and can be drawn into long filaments. The difference between cold-process soap and hot-process soap can be determined by the silkiness of the soap. Cold-process soap has a silky effect, while hot-process soap does not.

What is wire drawing

When handmade soap comes into contact with water, rub the surface of the soap with wet hands with a little force. The soap liquid between your palms and the soap will become very viscous and can be pulled into long thin threads. This phenomenon is called "wire drawing". The reason for the stringiness is that the soap contains oils with a relatively high proportion of oleic acid: such as olive oil, sweet almond oil, camellia oil, peanut oil, soybean oil, etc.

The Difference Between Hot Process Soap and Cold Process Soap

Soap made from soap base belongs to the hot process soap (hereinafter referred to as hot process soap). Hot-process soap requires continuous heating during the production process. Its advantage is that the soap making time is short and it can be used immediately after it is made. The disadvantage is that many nutrients are destroyed under continuous high temperatures. The advantage of cold-process soap is that it can retain most of the nutrients, but the disadvantage is that the production time is very long, and you have to wait at least 2 to 3 months before you can use it.

Most of the soaps sold on the market and produced in soap bars are made using the hot process, and glycerin is produced during the soap-making process, which needs to be extracted. The remaining soap, combined with artificial chemical additives (such as detergents or synthetic surfactants, etc.), becomes the commercially available soap we see. Cold-process soap retains the glycerin completely in the soap, and glycerin accounts for almost a quarter of the cold-process soap. Because glycerin is a natural moisturizer, cold-process soap will be more moisturizing than hot-process soap when used.

What are the benefits of cold process soap

Since high-temperature heating is not required during the production process, the natural vitamins and nutrients contained in plant oils and other additives are retained to the maximum extent, making it the best skin care product. The skin also needs to absorb nutrients through contact. Caring for it in the bath is the quickest and most effective way. When the pores all over the body are dilated, use plant soap to make the skin easy to absorb, relax, and not tight.