i just throw all my phasmid eggs into a 10l starmaid tub with cotton wool in the bottom that has a mesh lid/ blue chux and spray them once when they dry out spray them again...im having good results 30 titan eggs hatched out so far this week
basically you dont even need to do that....
I put mine in a container with moist peat moss and sat it on top of one of my reptile cages. I was getting one to two hatching a day once they started which took a couple of months.