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 Hill researching the Battle of Hamburger Hill. Irvin, an English-born filmmaker, worked on several documentaries in Vietnam in 1969. Vincent Canby of "The New York Times" called "Hamburger Hill" a "well-made Vietnam War film that narrows its attention to the men of a single platoon in a specific operation." In differentiating the film from "Platoon", he noted the film "refuses to put its characters and events into any larger frame. It could have been made a week after the conclusion of the operation it recalls, which is both its strength and weakness, depending on how you look at it." Hal Hinson