What is the Cold Process for soap making?

The Cold Process (or CP) method of making soap basically means that no heat is added to the soap to help it “cook” or saponify.

Heat may be applied to fats and oil used in order to bring them all to the liquid state before adding the lye solution to them, but those oils and fats can also be whipped to make them lighter by adding air and then adding the lye solution to make soap.

The water (or other liquid used to dissolve the lye in) becomes hot if it is room temperature or even cool when the lye is added to it. This is an exothermic reaction, which means that when the lye dissolves in the water heat is given off. Some soap makers choose to cool this solution prior to adding it to the fats/oils, some choose to add it when still hot or warm. I use both methods, depending on the soap I am making at the time.

The fats/oils and the lye solution are stirred together until the mixtures traces (or if you drop a ribbon of the raw soap from a spoon it should sit on top of the rest of the soap for a few seconds before sinking) and is then poured into a mold or molds. The soap may be insulated to allow the soap to gel (check out my blog on the gel process HERE) or kept cool and not allowed to gel.

Soap is allowed to sit in the mold from several hours to several days before it is unmolded, cut (if necessary) and then set to cure. The curing process is from 3-4 weeks during which water evaporates, the saponification process finishes and the soap begins to mellow some (like fine wine).

Tags: , , , , , ,

One Response to “What is the Cold Process for soap making?”

  1. Hot Process Soap « Body by M Blog Says:

    […] Process Soap By bodybym So I talked about the Cold Process (CP) method for making soap, now here’s some info on the Hot Process (HP) method for making […]

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: