It also very much depends on the climate you are in when you open the bator. Here in dry montana its pretty darn risky. Somewhere that has a naturally higher humidity not so much. But then my broody got off her nest in lockdown, soooo yes I ended up with a couple shrink wrapped that I had to help. But aren't hen's supposed to be the experts???? Point is you can do everything 100% perfectly and still end up with a crappy hatch or do many things wrong and get a good hatch. Its really a lot like gambling, rotfl. Just be patient, I know easier said than done.
