c. scalded milk

Scalded milk is whole milk that has been heated to approximately 180–185°F (82–85°C), just below boiling point, then cooled before use. The scalding process denatures whey proteins and destroys heat-sensitive bacteria and enzymes, which historically was essential before pasteurization became standard. The process produces subtle chemical changes: the milk's flavor becomes slightly caramelized and sweeter, the texture becomes smoother, and the proteins denature, affecting how the milk behaves in baking and cooking. Scalded milk cools faster than boiling milk and is less likely to form a skin, though a light cream layer may still develop on its surface.

Scalded milk is primarily used in baking, particularly in yeast breads, dinner rolls, and enriched doughs where it strengthens gluten development and improves dough elasticity. The denatured proteins and reduced enzyme activity allow the dough to rise more evenly and achieve better volume. It is also used in custards, puddings, and cream sauces where its altered protein structure produces a smoother, silkier consistency. Historically, recipes called for scalded milk out of food safety necessity, though modern pasteurized milk has made this step largely optional in contemporary cooking. When a recipe specifies scalded milk, using it yields noticeably improved texture and crumb structure in baked goods.