What does the green circle around the eggs mean?

pot to retain the heat, and let the eggs sit in the hot water for 9–12 minutes, depending on their size.

This resting period ensures even, gentle cooking without overdoing it.

Next comes a crucial step: immediately plunge the eggs into a bowl of very cold water (ideally with ice cubes). This thermal shock stops the cooking process instantly and makes peeling easier, while also preserving the yolk’s beautiful color.

The result? A perfectly cooked egg with no trace of a greenish hue and a pleasant texture—perfect hard-boiled eggs guaranteed.