Tempering (Eggs)

Egg proteins — primarily ovalbumin and conalbumin — begin to denature and coagulate irreversibly at around 63–70 °C (145–158 °F). When cold or room-temperature eggs are added directly to a hot liquid, the outer proteins hit high heat instantly and seize into rubbery curds before they can disperse. Tempering prevents this by gradually increasing the egg temperature: a small ladleful of hot liquid (cream, milk, broth, or sauce) is slowly whisked into the beaten eggs or yolks, raising their temperature incrementally. This is repeated two or three times before the warmed egg mixture is returned to the main pot over low-to-medium heat and stirred constantly. The technique is essential to classic custards (crème anglaise, pastry cream, lemon curd), to carbonara (which relies on residual pasta heat rather than a direct ladle pour), and to enriching soups and stews with an egg-yolk-and-cream liaison. The slow temperature equalization allows the proteins to set evenly and gently, producing a smooth, glossy, thickened result rather than a scrambled one.

“He whisked two ladlefuls of the hot cream into the beaten yolks before stirring the mixture back into the saucepan, tempering carefully so the crème anglaise stayed silky.”

• TechniqueCustard Making
• ConceptProtein Denaturation
• TechniqueLiaison

1. 1.On Food and Cooking — Harold McGee (2004)
2. 2.The Professional Pastry Chef — Bo Friberg (4th ed., 2002)
3. 3.Modernist Cuisine: The Art and Science of Cooking — Myhrvold, Young & Bilet (2011)
4. 4.The French Laundry Cookbook — Thomas Keller (1999)

Confidence: high