Quote Originally Posted by joebad976 View Post
I have used those tubs two years in a row and have had zero humidity issues using no press and seal. I even have some other tubs that are sealed even worse but stack much nicer in my cooler. I use the egg crate but do not soak my vermiculite. I set it up just like you would if the eggs were in the substrate. I have never had to add water or mess with the substrate during incubation.

Guess it is all personal preference and what has worked well for each person.
Maybe because you stack them they seal better?
In my experience using them 1 season they leaked a lot, but then I didn't stack them either, so who knows