How Long Does Egg White Last?

Separated egg whites hold for 2-4 days in the fridge in a covered container, a shorter window than the whole egg's several weeks, since removing the protective shell and yolk exposes the whites directly to air and to whatever else sits nearby in the fridge. An off smell, or a pink or iridescent sheen developing on the surface — a sign of a specific spoilage bacteria that shows up more often in whites than in other egg components — are the real signs a container has turned.

Because egg whites carry so little of their own flavor or fat to mask a problem, an off smell here is unusually clear and easy to catch compared to some other spoiled foods, so a quick sniff before adding whites to a recipe is a reliable check. Keeping separated whites in a tightly covered container rather than an open bowl slows both moisture loss and the buildup of a fridge-absorbed odor that can make an otherwise good batch smell slightly off despite no real bacterial contamination. Whites left in the fridge closer to the four-day mark are still safe to cook fully into something like a baked meringue, but whip to less stable peaks by that point than very fresh whites do, a quality difference worth planning for if a delicate soufflé is the goal rather than a cooked dish where peak height matters less.

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