Hamburger such as , due to the occasional initial improper preparation of the meat, so caution is needed during handling and cooking. Because of the potential for food-borne illness, the USDA recommends hamburgers be cooked to an internal temperature of . If cooked to this temperature, they are considered well-done. Burgers can also be made with patties made from ingredients other than beef. For example, a "turkey burger" uses ground turkey meat, a "chicken burger" uses ground chicken meat. A "buffalo burger" uses ground meat from a bison, and an "ostrich burger" is made from ground seasoned ostrich meat. A deer
Hamburger Burger King. Most burger shops have also adopted a pizzeria-like approach when it comes to home delivery, and almost all major fast food chains deliver. In the former Yugoslavia, and originally in Serbia, there is a local version of the hamburger known as the "pljeskavica". It is often served as a patty, but may have a bun as well. Throughout Belgium and in some eateries in the Netherlands, a Bicky Burger is sold that combines pork, chicken, and horse meat. The hamburger, usually fried, is served between a bun, sprinkled with sesame seeds. It often comes with a specific "Bickysaus"