Our distiller in South Africa recently sent me this picture of one of the women producing Marula oil (Sclerocarya birrea), one of our favorite carrier oils.
Making marula oil is no simple process. Each marula fruit holds a nut, and inside the nut is the kernel from which the oil is extracted. Considerable work goes into the extraction process, as the nut is very fibrous. The nuts are cracked--by hand--on a stone slab to get to the kernel, and then the kernel is cold pressed--also by hand--for the oil.