Soap used to be made with animal fat and lye, but with the discovery of essential oils, it has been made without animal fat.

Tallow soap is a traditional soap made with rendered animal fat, commonly from beef or lamb. Tallow, rich in natural fats, has been used in soap-making for a long time. Unlike commercial soaps ...

Soaps play a vital role in keeping clean. They are salts made from the alkaline hydrolysis of fats and oils (triglycerides). Fat molecules contain three ester links. These can be hydrolysed when ...

Legend has it that the first soap was accidentally produced on Mt. Sopa, a site of animal sacrifice. As the goat meat burned, fat dripped down through the fire, bonding to lye leaching out of the ...