The phrase indicates the duration required to cook a substantial cut of beef, specifically a brisket weighing approximately fifteen pounds, using the indirect heat of a smoker. This extended cooking process, essential for tenderizing the meat, typically aims for an internal temperature that renders the connective tissues.
Properly estimating this time is crucial for barbecue enthusiasts and professionals alike. Adequate smoking ensures the breakdown of collagen, resulting in a moist, flavorful final product. Historically, understanding optimal cooking times for large cuts of meat has been a cornerstone of culinary tradition, influencing flavor profiles and textural qualities.