What is used to extract oil from blubber?

Oil is extracted from blubber using a process called rendering. This involves heating the blubber to separate the fat from the connective tissues and other solids. The heat causes the fat to liquefy, allowing it to be collected and refined for various uses, such as in cosmetics, food, and fuel. Traditional methods have included boiling or steaming the blubber, while modern techniques may use more advanced mechanical or chemical processes.