How Long Does Egg Yolk Last?

Separated raw egg yolks hold for only about 2 days in the fridge, a notably shorter window than the whole egg's several weeks or even separated whites' several days, since yolks are rich in fat and moisture that bacteria can use more readily than the leaner whites offer. An off smell or a grayish, dulling surface where the yolk meets the air are the real signs a batch of stored yolks has turned.

Keeping raw yolks submerged in a small amount of water in a covered container is a technique some cooks use to slow that short countdown slightly, since the water limits direct air exposure to the yolk's surface, though it still doesn't extend the window much beyond that 2-day mark and shouldn't be relied on as a long-term fix. Because yolks decline so quickly compared to other egg components, using leftover yolks within a day if possible — a custard, a batch of mayonnaise, or an egg wash for baking — makes more sense than planning to store them for several days. A recipe that only needs whites and leaves yolks behind is exactly the situation where freezing, with the salt or sugar step above, makes far more sense than trying to stretch that short 2-day fridge window. Yolks stored loose in an uncovered bowl dry out and form a thin skin on top considerably faster than ones kept covered or submerged, and that dried skin is a texture problem worth stirring out or discarding rather than a genuine safety concern on its own.

See Egg Yolk's full storage & shelf-life guide (with spoilage signs) →