Can I Eat Expired Century Egg Preserved Egg?
Safe to eat up to 180 days after expiry
Expert Source
"Century Eggs, also known as Preserved Eggs, should be stored in the refrigerator at a temperature below 40°F and consumed within 1-2 weeks for optimal quality and safety, according to USDA recommendations."
✅Fresh Century Egg Preserved Egg

⚠️Spoiled Century Egg Preserved Egg

Storage Guidelines
Storage Location
Fridge
Ideal Temperature
4°C (40°F)
Best Storage Method
Store in a cool, dry place
Shelf Life
Average Shelf Life
365 days
Signs of Spoilage
Extremely strong ammonia smell, mold
Additional Information
Alternative Uses
Use in congee or salads
Possible Substitutions
Hard-boiled egg, salted egg
Frequently Asked Questions
What's the difference between expiration and best quality dates?
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The expiration date on canned or jarred century eggs primarily indicates the date up to which the eggs are expected to be safe to consume if stored properly. Beyond this date, the quality of the century eggs may deteriorate, affecting their taste, texture, and overall appeal. However, century eggs are known for their long shelf life due to the preservation process, and they can often be consumed beyond the expiration date if they show no signs of spoilage. Best quality, on the other hand, refers to the peak flavor, texture, and overall experience of consuming century eggs. Consuming century eggs before the expiration date and when they are at their best quality ensures the most enjoyable culinary experience.
How can I tell if Century Egg Preserved Egg has gone bad?
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To check if Century Egg Preserved Egg has gone bad, look for any mold growth or unusual discoloration on the surface. Sniff the egg for any sour or off-putting smell. Lastly, gently touch the egg to feel for any sliminess or texture changes that indicate spoilage.
What are the food safety risks?
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Century eggs, also known as preserved eggs, are 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 several months. There are some food safety risks associated with consuming century eggs due to the preservation process. The alkaline and ammonia content in century eggs can lead to a strong flavor and aroma that may be off-putting to some individuals. Additionally, improper storage or contamination during the preservation process can lead to foodborne illnesses such as botulism or salmonella. It is crucial to purchase century eggs from reputable sources and ensure they are properly stored to minimize these risks.
What are some pro storage tips?
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To extend the shelf life and preserve the quality of canned or jarred century eggs, store them in a cool, dry place away from direct sunlight and strong odors. Once opened, keep the century eggs refrigerated in an airtight container or wrapped tightly in plastic wrap to prevent them from absorbing other odors in the fridge. It's recommended to consume century eggs within a few days of opening for the best flavor and texture. If you notice any signs of spoilage such as mold, off odors, or unusual discoloration, discard the century eggs to avoid the risk of foodborne illness.
Any interesting facts about Century Egg Preserved Egg?
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Century eggs have a history dating back over 600 years in China and are considered a delicacy with a unique flavor profile and texture. Despite their name, century eggs are typically preserved for a few weeks to a few months, not 100 years. The preservation process transforms the egg whites into a translucent, gelatinous texture with a dark green to gray color, while the yolks become creamy and have a strong umami flavor. Century eggs are often enjoyed as a topping for congee, in salads, or as a standalone dish, and they are a staple in Chinese cuisine, symbolizing prosperity and longevity.
How long can Century Egg Preserved Egg be stored in the fridge after opening?
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Once opened, Century Egg Preserved Egg can be safely stored in the fridge for up to 1 week. To maintain quality, ensure it is tightly sealed in an airtight container.
Can I eat Century Egg Preserved Egg if it has been at room temperature for a few hours?
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If Century Egg Preserved Egg has been left at room temperature for a few hours, it is best to discard it. Bacteria can multiply rapidly at room temperature, increasing the risk of foodborne illness.
Does the type of container affect the shelf life of Century Egg Preserved Egg?
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The type of container can impact the shelf life of Century Egg Preserved Egg. It is recommended to store it in its original airtight container to maintain freshness and prevent absorption of odors from other foods in the fridge.
Can I store Century Egg Preserved Egg next to other foods in the fridge?
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It is safe to store Century Egg Preserved Egg next to other foods in the fridge as long as it is in a sealed container to prevent cross-contamination. Keep it away from foods with strong odors to avoid flavor transfer.
How does freezing affect the texture of Century Egg Preserved Egg when thawed?
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Century Egg Preserved Egg should not be frozen as it can alter the texture and quality significantly. Freezing may cause the egg to become watery and affect its taste and appearance upon thawing.
Do different brands of Century Egg Preserved Egg have different shelf lives?
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While shelf life can vary slightly between brands, most Century Egg Preserved Eggs have a similar shelf life when unopened. Always refer to the specific expiration date on the packaging for the most accurate information.
How does cooking Century Egg Preserved Egg affect its expiration date?
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Cooking Century Egg Preserved Egg can reduce its shelf life. Once cooked, it should be consumed promptly or stored in the fridge for no more than 2-3 days in an airtight container to maintain safety and quality.
Does Century Egg Preserved Egg last longer in summer or winter?
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Century Egg Preserved Egg generally lasts longer in colder temperatures, such as winter, compared to warmer temperatures like summer. Store it in the coldest part of the fridge to extend its shelf life.
How can I safely transport Century Egg Preserved Egg for a few hours?
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When transporting Century Egg Preserved Egg for a few hours, use a well-insulated cooler bag with ice packs to maintain a cool temperature. Ensure the eggs are tightly sealed to prevent any leakage or cross-contamination during transit.
Expiration Calculator
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Reviewed By: Food Safety & Expiration Experts
At Can I Eat Expired, we are committed to providing accurate, science-backed information about food expiration and storage safety. Our content is carefully reviewed based on guidelines from leading food safety organizations, including:
- ✅U.S. Food & Drug Administration (FDA) – Food Safety Guidelines
- ✅United States Department of Agriculture (USDA) – Food Storage & Expiration Dates
- ✅World Health Organization (WHO) – Foodborne Diseases & Safety
- ✅Centers for Disease Control & Prevention (CDC) – Preventing Foodborne Illness
🔍 How We Ensure Accuracy
- We use official food safety sources to guide our recommendations.
- Our team continuously reviews and updates content based on the latest research.
- We encourage users to always check for signs of spoilage and follow proper storage guidelines.
📚 Have Questions?
If you have specific concerns about food expiration or safety, we recommend consulting a registered dietitian, food scientist, or your local health department.
Note: These are general guidelines. Always use your best judgment and when in doubt, throw it out.