How Does the Slow Cooker Work?

Most slow cookers have the same basic design – a dishwasher-safe stoneware insert, called the ‘container’ or ‘crock’, which sits inside a thin metal casing that houses the electrical element, and a lid. As the condensation accumulates inside the slow cooker it creates a low-pressure seal between the lid and the container. You can observe this when cooking after a long period of time, as water sputters around the edge of the lid. The electrical elements are encased in the side as well as the base, providing all-round heat.