Boiled eggs, a correction

As I ate that first batch of egg, many of them had the infamous green ring, which means the batch was overcooked.  Reviewing my old habits, I made a small discovery.  The 20-minute time used was for 18 eggs, not 12.  We had to do big batches of eggs for the renaissance fair, so I bought and boiled cartons of 18.  My sincerest apologies if I misled anybody.  I will have to recalculate my timing on a dozen eggs and update this how-to at a future date.

I am currently testing the eggs at 18 minutes.

As always, I welcome your comments.  Click on the Comment link below; it may say "No" or have a number in front of it.