American barbecue is a distinct cooking tradition built on the principle of cooking tough cuts of meat at low temperatures for many hours, with smoke flavor from smoldering wood. The defining feature is indirect heat and patience: the food is not placed over the fire but in a chamber where it cooks gently while absorbing smoke. This is fundamentally different from grilling, which uses direct, intense heat to sear relatively quick-cooking foods. A backyard cookout with burgers and hot dogs over glowing coals is grilling; a brisket that takes twelve hours in an offset smoker is barbecue.
The temperature range most associated with traditional barbecue is roughly 225–275°F (107–135°C), a window often called "low and slow." At these temperatures, collagen in tough cuts like brisket, pork shoulder, and ribs slowly breaks down into gelatin, transforming otherwise chewy meat into tender, juicy food. A newer approach called "hot and fast" pushes temperatures above 350°F to shorten cook times, and is sometimes used for beef. Whether low and slow or hot and fast, the cook relies on indirect heat — the heat source is not directly under the food, but instead warms the entire cooking chamber while smoke circulates around the meat.
The contrast with direct heat is useful for understanding both methods. With direct heat, food sits right above the flame or coals, producing a fast sear with visible grill marks. With indirect heat, the food cooks in the radiant warmth of a closed chamber, often with a pan of water to stabilize humidity. Some cooks use both — searing steaks over direct heat and finishing with indirect heat, for example. Mastering barbecue means understanding when each method serves the cook and matching it to the cut and the desired result.