I live in an apartment. We have a table in the meeting room and tenants will put stuff on it from food, clothing, appliances etc. It's a free table and we can take anything on the table.
This morning some strange looking bars of soap were on the table with a note. Made with 50% Olive Oil, 25% Lard, and 25% Coconut Oil. I grabbed a couple and tried it as a soap. It has kind of a Coconut smell. What surprised me was it foamed up just like soap. What in the ingredients would make it foam up?
I'm also wondering if it would work as a patch lube?
I'm betting there are better things for patch lube (but that's a tired subject).
It is soap. Those fats have been saponified with sodium and/or potassium hydroxide (lye) to make soap any fats left over is because the recipes are always kept on the rich side to ensure that 100% of the lye is consumed. This leaves some fatty/oiliness but then it washes right off with soap and water.
Any concern about salt-test it on raw steel with humidity.
My soap-making days condensed:
Variations in the fats used and their proportions as well as the lye or combination of lyes used are what give soaps their various characteristics. I made some jiggled into the favor of a shaving soap. But I only did one or two runs, and
it is fine shaving soap, but is
fantastic for washing your hair, lathers like crazy. I forget how many oils was combining, plus tallow as the base. Lot of variables to trade-off when deciding the character of soap you want to make. You trade off some cleaning value to get slickness as desired in a shaving soap. But then I tried some Italian (run of the mill) shaving soap and it's by far better. So I stopped messing with saponification, cut my losses.