Costco's Newest Offering: Century Eggs -An Acquired Taste for the Adventurous Foodie

For those who’ve wandered the aisles of Costco, the thrill of discovering new and unusual products is part of the fun. From extravagant $10,000 bottles of French wine to... caskets, the warehouse giant isn’t shy about stocking one-of-a-kind finds. But their latest offering is causing quite a stir: preserved “century eggs.”

These century eggs, which have long been a delicacy in China, are preserved duck eggs that undergo a unique process of fermentation using ingredients like salt, clay, lime, black tea, and ash. After soaking in this mixture for weeks or even months, the eggs transform from their usual white color to dark brown or green. The end result is a shelf-stable, jello-like egg with a potent aroma that has the potential to challenge even the most daring of taste buds.

So, what’s the deal with these eggs? According to Tasting Table, Costco is now selling cases of century eggs, giving customers the chance to try something truly different. While the eggs are often eaten on their own or sliced into dishes like congee (a savory rice porridge), it's the ammonia-like smell that many are finding hard to ignore. However, if you can get past that, the taste is often described as a unique blend of flavors that pair well with wine.

In a Reddit post, food reviewer and YouTuber The Sushi Guy shared his experience after purchasing a pack of century eggs for $13.99 at a Costco in San Jose, California. His verdict? The egg whites were "jello-like," and the smell was unmistakably strong. Despite the initial shock, he noted that the taste wasn’t nearly as off-putting as the scent. In fact, for those with an open mind, century eggs can become a beloved snack or addition to dishes.

The origins of century eggs are steeped in mystery. Some stories trace their roots to a Chinese farmer who allegedly discovered duck eggs in a lime-filled puddle, while others point to eggs that were left to soak in discarded tea leaves and ash. Either way, the practice likely dates back to the Ming Dynasty. Over time, the dish spread from rural regions of China to Hong Kong in the 1940s, and today, century eggs are still enjoyed as a popular snack or appetizer across China.

Of course, century eggs are not for everyone. As restaurateur Carrel Kam explained to the BBC in 2022, the appearance of the eggs—dark, gooey, and green—can be off-putting for some, especially foreign travelers. But much like blue cheese, the initial shock often gives way to an appreciation for the taste.

So, whether you’re a seasoned foodie looking to try something new, or just intrigued by Costco’s latest addition, the century egg is sure to spark curiosity—and perhaps even challenge your palate in a whole new way.