I can't take credit for it. Another Cemani breeder taught me that. Just make sure to use a new one each time and cut the bottom off for circulation. Apparently you can also hatch in the egg carton but I prefer to lay them down on their side. I like to see the eggs wiggle as the baby rearranges in the egg just before hatch.Egg cartons.... in the machine... Very smart...
Got Pictures?
I will take pics in a day or so as I am setting Cemani eggs for the Easter Hatch-Along. I am waiting for several batches to finish up. Hatch already, another egg needs the space.