We've been experimenting and developing our own range of cold process soaps for over 7 years now. There has been a lot of research involved to understand how the cold process works, how it differs from other techniques and what a cold pressed soap delivers above and beyond the norm.
Cold process soap is a method of producing soap that requires no extra heat to create the soap-it is therefore 'cold' - with no extra heat being applied to the process. That doesn't mean that things don't get hot-the combination of lye with natural butters and oils create its own heat. A chemical reaction between the ingredients takes place, leaving you, quite magically, with a block of soap.