I’m a big fan of soap pigments. They tend to colour my soap very evenly and are easy to use. They are definitely a lot less messy than lakes and micas, and also a little goes a long way. I would strongly suggest to invest in a trio of soap pigments, if you are into cold process soap making!
This is one of my favourite natural soap recipes and despite not adding any fragrance, the soap smells deliciously like porridge, which isn’t surprising as the soap is made of the same ingredients: milk, oats and honey.
Feijoas are great to add to your soaps for their exfoliant properties, both from the fruit itself but also from the texture of the flesh and seeds. You don’t have to worry about the fruit going bad in the soap, because the fruit, along with the oils and lye, will go through a saponification process in a high pH environment, and will keep anything from spoiling.
One of the biggest problems you face when making cold process soaps is colour. The high pH environment of cold process soap making can do some funny things to your colourants. Some colourants, particular natural colourants, will fade to grey or morph into other colours.
When you decide on which soap mold to use, you need to take in account the technique you are using to make soap. Not all soap molds are suitable for the high pH environment of cold process soap making. However, you don’t need to spend a lot of money on soap molds, there are plenty of things around that you can use