T—Cheftionary

T

Temperature Gradient

Definition:

The difference in temperature between the exterior and interior of food during cooking.

Culinary Function:

A steep gradient leads to overcooked exteriors and undercooked centers; controlled heat narrows the gradient for even doneness.

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Thermal Ceiling

The maximum temperature a surface can reach when moisture is present.

In cooking, water creates a thermal ceiling at 212°F (100°C) because energy must first be used to evaporate the water before the temperature can rise.

As long as moisture remains on the surface of food or in the pan, the temperature cannot exceed this limit, preventing browning reactions such as Maillard and caramelization.

—————————————————————————————————————————————————————————Thermal Mass

The ability of a material to store and retain heat energy.

Cookware with high thermal mass—such as cast iron or thick stainless steel—holds more stored heat, allowing it to maintain temperature when cold food is added.

Cookware with low thermal mass—such as thin aluminum—loses heat quickly, causing surface temperature to drop and preventing proper browning.

High thermal mass is essential for consistent searing and crust development.