How Do Century Eggs Get Black?

Century eggs are one of the most misunderstood dishes in Chinese cuisine. A black gelatin egg that tastes like ripe cheese with a whiff of ammonia, it’s often used in late-night comedy shows as a sight gag. But how are they made, and what’s the science that makes them turn black? Plus, we found a golden century egg maker in Sichuan to see if they taste different. Don’t miss our stories, what’s buzzing around the web, and bonus material. Get GT in your inbox! Sign up at If you liked this video, we have more stories about classic Chinese dishes, including: Unusual Green Grass Jelly Dessert Mooncakes: What Are They and How Are They Made Follow us on Instagram for behind-the-scenes moments: Stay updated on Twitter: Join the conversation on Facebook: