It’s purely a matter of aesthetics… but we all agree, we prefer a bright, transparent yolk!
The real problem: uncontrolled cooking.
If this ring appears, it’s usually because the egg was cooked too long or at too high a temperature. Just like overcooked pasta, the quality of the finished product suffers.
Many people think they’re doing the right thing by boiling the yolk for a long time, but that’s exactly where the mistake lies. Overcooking alters the yolk’s consistency and appearance.
Fortunately, a few tricks are enough to avoid this