
Century egg, also known as preserved egg or hundred-year egg, is a traditional Chinese delicacy made by preserving duck, chicken, or quail eggs in a mixture of clay, ash, salt, quicklime, and rice hulls for several weeks to months. The preservation process transforms the egg white into a dark, jelly-like texture and the yolk into a creamy, rich, and slightly pungent center with a complex umami flavor. Its marbled appearance and unique taste make it a sought-after ingredient in Asian cuisine, often used in appetizers, congee, and salads.
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Century eggs should be stored in a cool, dry place at room temperature if unopened. Once opened, they should be kept in an airtight container and refrigerated to maintain freshness and prevent spoilage. Avoid exposing them to direct sunlight or moisture, as this can affect their flavor and texture. For longer storage, ensure they are well-sealed to prevent odors from spreading in the fridge.