The best luck I have is bring the eggs to a boil in salted water. After it boils good for a minute, I turn the burner off and put a lid on the pan. I set my timer for 18 minutes. Once the timer goes off, I take it to the sink and drain and fill with cold water, water turns very warm, drain add more cold water and then dump the ice in and fill it up. I pretty much empty my ice machine from the fridge. Later check that they are cold, dry them off and put in the fridge. Shells come off great.