If your eggs have a green ring around the yolk, it means

a maximum of 2-3 days.
 Tips for delicious serving
Slicing eggs for salad or sandwiches.
Prepared as “mimosa eggs” – mixed with homemade mayonnaise.
On avocado toast or as a crunchy garnish for soups.
Summary
The green edge on boiled eggs is just a cosmetic issue. You can avoid it by:

boiling the eggs in cold water at a gentle boil,
quickly cooling them with continue reading …