What is a Century Egg

What is a Century Egg?

Century eggs, also known as preserved eggs or hundred-year eggs, are a delicacy with a rich history and a unique flavor profile. Despite their name, they are not actually aged for a century. These eggs are preserved through a special process that transforms their taste, texture, and appearance. In this article, we will explore the fascinating world of century eggs, from their ancient origins to their culinary uses and even health benefits.

History of Century Eggs

Ancient Origins

Century eggs have a history dating back several centuries. They are believed to have originated in China, where the preservation technique was first developed. The process involves preserving duck, chicken, or quail eggs in a mixture of clay, ash, salt, quicklime, and rice straw for several weeks to several months, depending on the desired flavor and texture.

Chinese Delicacy

In China, century eggs are a beloved delicacy, and they are often consumed during traditional festivals and celebrations. Their distinctive flavor and texture have made them a cultural icon in Chinese cuisine.

Making Century Eggs

Preserving the Egg

The preservation process of century eggs is unique. The eggs are coated in a paste made of the aforementioned ingredients and then left to ferment. The alkaline mixture transforms the egg’s proteins, fats, and minerals, resulting in the development of their characteristic flavor.

Key Ingredients

  • Quicklime: Alkaline component that plays a crucial role in preserving the eggs.
  • Salt: Enhances the preservation process and contributes to the flavor.
  • Rice Straw: A layer that covers the egg and regulates moisture.

Flavor and Appearance

Taste Profile

Century eggs have a distinctive flavor that combines elements of saltiness, umami, and a hint of sulfur. The yolk turns dark green or gray, while the egg white becomes translucent with a jelly-like texture. These changes create a unique taste and mouthfeel.

Controversial Appearance

The appearance of century eggs can be polarizing. While some find their translucent appearance fascinating, others may be initially put off by their unusual look. However, it’s essential to give them a chance, as their flavor is unlike anything else.

Century Eggs in Cuisine

Traditional Dishes

Century eggs are a key ingredient in various Chinese dishes. They are often used in congee, as a topping for porridge, or as a flavorful addition to salads.

Modern Culinary Uses

In recent years, century eggs have found their way into global cuisine. They are used in fusion dishes, such as century egg sushi, and as an accompaniment to contemporary salads and appetizers.

Nutritional Value

Rich in Proteins

Century eggs are a good source of protein, making them a valuable addition to meals, especially for those seeking protein-rich options.

Other Nutrients

They also contain essential nutrients like vitamins, minerals, and healthy fats, which contribute to their nutritional value.

Health Benefits

Controversies and Concerns

While century eggs offer nutritional benefits, their high sodium content may raise concerns for individuals with specific dietary restrictions. It’s important to consume them in moderation.

Century Eggs in Popular Culture

References in Media

Century eggs have made appearances in various forms of media, both in their home country and internationally. They are often used to symbolize tradition, culture, and unique culinary experiences.

How to Enjoy Century Eggs

Serving Suggestions

Century eggs can be enjoyed in numerous ways. They are often sliced or diced and added to dishes as a flavorful ingredient.

Where to Find Century Eggs

Purchasing and Availability

Century eggs are readily available in Asian grocery stores and can also be found in some specialty food shops. They are typically sold individually or in packs.

Preparing Century Eggs

Cooking and Recipes

Incorporating century eggs into your cooking is easy. You can find various recipes online that showcase their unique flavor and texture.

Century Eggs Around the World

Variations in Different Cuisines

While century eggs are a Chinese delicacy, similar preserved egg dishes can be found in other Asian cuisines, each with its unique twist on the preparation and serving.

Century Eggs: Love or Loathe?

Differing Opinions

The love for century eggs varies from person to person. Some are enchanted by their bold flavor, while others may find them an acquired taste. It’s an experience worth trying at least once.


A Culinary Adventure

Trying Century Eggs for the First Time

If you’ve never experienced century eggs, embark on a culinary adventure and give them a try. You might discover a newfound appreciation for this unique delicacy.


In conclusion, century eggs offer a distinctive culinary experience that combines rich history, unique flavor, and nutritional benefits. While they may appear perplexing and burst with controversy, they are undoubtedly worth trying for adventurous food enthusiasts.


1. Are century eggs really aged for a century? No, despite their name, century eggs are not aged for a century. They are preserved through a unique process that takes several weeks to several months.

2. Where can I purchase century eggs? You can find century eggs in Asian grocery stores and some specialty food shops.

3. How do I prepare century eggs for cooking? Century eggs are typically sliced or diced and added to various dishes. You can find recipes online that provide guidance on using them.

4. Are century eggs nutritious? Century eggs are a good source of protein and contain essential nutrients, but their high sodium content should be consumed in moderation.

5. Do century eggs taste like regular eggs? Century eggs have a unique flavor that

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