How Long Do Century Eggs Last in the Fridge?
Preservation and safety of these traditional preserved eggs.
Century-eggs last about 3–5 weeks when stored properly in the refrigerator.
Century-eggs, also known as thousand-year eggs, are a culinary staple characterized by their dark brown, translucent outer coating and creamy, off-white whites. Because these eggs undergo a chemical transformation involving alkaline substances like lime or ash, they possess a much longer shelf life than standard boiled eggs. When kept in a sealed container in the refrigerator, they maintain their unique texture and flavor for several weeks. However, because they are prepared through an unconventional process, it is vital to monitor them closely for any signs of spoilage that deviate from their expected appearance.
Heads up: shelf-life ranges are estimates based on home storage. We make no guarantee of accuracy. When unsure, throw it out.
The full timeline
Week 1 (Peak Fresh)
1 week
- dark brown exterior
- creamy texture
- no odor
- Store in airtight container
- Keep refrigerated
Week 2 (Stable Storage)
1–2 weeks
- consistent color
- firm structure
- mild earthy aroma
- Continue refrigeration
Week 3 (Cautionary Period)
3 weeks
- slight surface tackiness
- dull sheen
- faint ammonia scent
- Use immediately
- Check for spoilage
Week 4 (Tipping Point)
3–5 weeks
- slimy coating
- foul odor
- discoloration
- Toss
- Discard
Common questions
How long can I keep century eggs in the refrigerator?
Century eggs last about 3–5 weeks when stored properly in the refrigerator.
Can I freeze century eggs?
While possible, freezing can damage the unique jelly-like texture of the whites. Refrigeration is preferred for maintaining quality.
Why does my century-egg smell different than usual?
Sage's Verdict: A faint earthy scent is normal, but a sharp ammonia or sulfur smell indicates bacterial growth; discard immediately.
These unique treasures stay fresh for several weeks in the fridge. When in doubt about that funky aroma, just toss it out!