Have you ever cracked open a hard-boiled egg, only to find that the yolk has turned a mysterious green? Don’t worry – you’re not alone.

The Green Yolk Mystery

Green egg yolks happen when eggs are cooked for too long or at too high a temperature. The heat causes sulfur compounds in the egg white to react with iron in the yolk, creating a compound called ferrous sulfide, which gives the yolk its greenish hue. This can also affect scrambled eggs or omelets if cooked too aggressively.

Are They Safe to Eat?

The good news is, green yolks are completely safe to eat, even though they may not look very appetizing.

What to Do with Green Yolk Eggs?

Instead of tossing them, why not turn this unexpected color change into a fun culinary experiment? For example, try incorporating the green yolks into an avocado toast for a playful twist on flavor and color.