To extract oil, such as in obtaining healing balms, "oil is extracted by three general methods: rendering, pressing, and with volatile solvents... cold-pressed oil, also called cold-drawn, or virgin, oil, is purer...than oil pressed with the aid of heat...the Romans developed a screw press...for the production of olive oil. Centuries ago, the Chinese employed the same series of operations followed in modern pressing mills--namely, bruising...(Britannica)."
But yes, the penalty for sin is death.