Carry-Over Cooking

Carry-over cooking describes the phenomenon whereby a piece of food continues to cook — and its core temperature continues to rise — for several minutes after it has been removed from the oven, grill, pan, or fryer. The driving force is thermal gradient: the outer layers of a dense protein or vegetable are hotter than the interior, and heat keeps flowing inward by conduction until the gradient equalizes. The magnitude of carry-over depends on three factors: the mass and density of the food (a 5 kg standing rib roast can carry over 8–10°C, while a 2 cm steak may carry over only 3–5°C), the intensity of the prior cooking environment (a blazing high-heat grill imparts a steeper thermal gradient than a low-and-slow oven), and the thermal diffusivity of the food (fat-rich cuts equilibrate more slowly than lean ones). In practical kitchen terms, the cook must anticipate carry-over and pull the food early — at a 'pull temperature' 3–10°C below the target doneness temperature — then allow it to rest on a rack or board. Resting serves a dual purpose: it lets carry-over complete and it allows myosin fibers to relax and redistribute juices that contraction has expelled toward the center. Ignoring carry-over is one of the most common causes of overcooked proteins in professional and home kitchens alike.

“She pulled the prime rib at 52°C, knowing carry-over cooking would bring it to a perfect medium-rare 57°C by the time it reached the table.”

• DonenessMedium-Rare
• TechniqueResting Meat
• ConceptThermal Gradient

1. 1.On Food and Cooking — Harold McGee
2. 2.The Food Lab — J. Kenji López-Alt
3. 3.Modernist Cuisine — Myhrvold, Young & Bilet
4. 4.An Introduction to the Maillard Reaction — American Chemical Society

Confidence: high