Deration

Deration refers to the process of removing a part of the edible covering of a fruit or vegetable. This typically involves peeling or paring, which removes the outer skin. For example, derating a potato involves peeling off its skin before it is cooked. Similarly, derating an apple might involve peeling it to remove the skin before making a pie.

The primary purpose of derating is often to improve the palatability of the food. Skins can sometimes be tough, bitter, or otherwise undesirable in texture or taste. Derating can also be done to remove blemishes or to prepare the produce for specific cooking methods. Some cooking techniques, like certain types of frying or pureeing, benefit from the absence of skin.

In other contexts, deration can refer to a reduction in power or capacity, particularly in engineering or industrial settings. For instance, a piece of machinery might be "derated" to operate at a lower power output than its original design. This could be to extend its lifespan, reduce wear and tear, or to comply with safety regulations. This usage is distinct from the culinary application of the term.