https://www.myoilpress.com/news/working-principle-of-cold-press-oil-expeller-and-hot-oil-press-machine.html Cold press oil expeller machine has pure natural characteristics, avoiding the adverse effects of traditional high temperature oil processing. The natural flavor and color of the oil are retained in the cold-pressed product oil, and the physiological active substances in the oil are completely preserved (vitamin E has anti-aging function, sterols have skin-healthy function and enhance human metabolism function). The original flavor of the cold-pressed oil is the choice of healthy life. But most oils are not suitable for small cold press oil expeller. Gossypol toxin in cottonseed oil and aflatoxin in deteriorated oils must be refined before they can be removed.