How does an oil expeller work?

Colza oil
Oil expeller is a kind of mechanical equipment widely used in edible oil extraction. Hydraulic oil expeller is one of the most common oil press. Also known as the new vertical hydraulic oil press, hydraulic oil machine, sesame oil machine.

What is the best peanut butter grinding machine?

Peanut butter
Peanut butter grinding machine is a relatively common peanut butter making machine, usually in the form of a unit or stand-alone use. Good peanut butter grinding machine can make the finished peanut butter more delicate without changing the unique taste of the peanut itself.