An oil mill is like a special kitchen where we make oil from things like peanuts, coconuts, and olives.
First, we put the nuts or fruits into a big machine called a crusher. This machine uses a lot of force to crush the nuts or fruits into very tiny pieces.
Next, we put the tiny pieces into another machine called a press. This machine squeezes the pieces really hard so that the oil comes out.
The oil is then collected in a big container and separated from any leftover pieces or bits of the nuts or fruits.
Finally, the oil is bottled up and ready to be used in our food or maybe even in our cars.