A serrated knife is a kitchen knife that has a saw-toothed edge (serrations on the blade). Serrated knives are often used by chefs in restaurants and bakeries. They are also common in the kitchen at home for slicing bread, cake, other types of baked goods, and even meat. Serrated knives are typically not as sharp as other knives, but they do have the advantage of being able to cut through hard materials without getting stuck.
The serrations make it easier to saw through things like bread or tomatoes. The teeth are generally small and closely spaced. Serrated knives are often used in place of a saw to cut through tough materials like thick bones, frozen foods, and hard cheeses.
The length of the blade varies depending on the type of food being cut. The most common lengths are 5-inch (13 cm) and 8-inch (20 cm).
They are often used in place of other types of blades, such as a chef’s knife, because they can more easily cut through these tougher items.