Overview
Butterfat, also called milkfat, is the fatty portion of milk. It is the component that gives dairy products their richness, mouthfeel, and flavor. Butterfat content is the primary metric used to classify and sell milk, cream, and butter.
Origin and history
Butterfat has been consumed as long as humans have milked domesticated animals, dating to at least the Neolithic period in the Middle East and South Asia. The practice of separating cream from milk and churning it into butter is documented in ancient Indian, Greek, and Roman texts. Industrial cream separators, invented in the late 19th century, allowed precise control of butterfat percentages in commercial dairy products. Butterfat’s high smoke point and stability made it a preferred cooking fat in many cuisines, particularly in the form of clarified butter or ghee [1].
Varieties and aliases
- Milkfat
- Butter oil (when anhydrous)
- Anhydrous milkfat (AMF)
- Ghee (clarified butterfat, South Asian tradition)
- Samna (clarified butterfat, Middle Eastern tradition)
Culinary uses
Butterfat is the defining ingredient in butter, cream, and whole milk. It is used to make ice cream, where higher butterfat percentages produce denser, creamier textures. In baking, butterfat contributes tenderness and flakiness to pastries. It is also the base for sauces such as hollandaise and beurre blanc. Butterfat can be clarified into ghee or drawn butter, which has a higher smoke point and longer shelf life than whole butter [1][2].
Notes for cooks
- Butterfat content directly affects texture in ice cream and baked goods. Higher percentages yield richer, denser results.
- Clarified butter (ghee) removes milk solids, raising the smoke point to approximately 250°C (482°F), suitable for high-heat cooking.
- Butterfat can be stored frozen for extended periods without significant quality loss, though it readily absorbs odors from other foods.