Baking is the technique of prolonged cooking of food by dry heat acting by conduction, and not by radiation, normally in an oven, but also in hot ashes, or on hot stones. It is primarily used for the preparation of bread, cakes, pastries and pies, tarts, and quiches. Such items are sometimes referred to as "baked goods," and are sold at a bakery. A person who prepares baked goods as a profession is called a baker. It is also used for the preparation of baked potatoes; baked apples; baked beans; some pasta dishes, such as lasagne; and various other foods, such as the pretzel.Many domestic ovens are provided with two heating elements: one for baking, using convection and conduction to heat the food; and one for broiling or grilling, heating mainly by radiation. Meat may be baked, but is more often roasted, a similar process, using higher temperatures and shorter cooking times.Items other than foodstuffs can be baked, such as things made of clay and Creepy Crawlers. The baking process doen not add any fat to the product, and producers of snack products such as potato chips are also beginning to substitute the process of deep-frying by baking in order to reduce the fat content of their products.