Chicks usually dry out within a few hours of hatching. As soon as they are dry you can take them out of the incubator and put them in a brooder. If you have any chicks busy hatching at the time it will be better to wait for them to complete the hatch before opening the incubator and letting the humidity drop. Chicks don't need food and water for the first 2-3 days, but offer them some water in the brooder and put some food down for them by day 2 so they can eat if they want to. Mine usually eats by day 2. Good luck with your hatch!