Before You Set Eggs
A practical pre-hatch checklist for incubator testing, egg selection, and setup.
The quiet preparation stage, when a hatch is either made easier or made harder before anyone notices.
Quick Answer
A better hatch starts before eggs go into the incubator. Run the incubator empty, verify temperature and humidity readings, choose clean sound eggs, and write down the set date before day 1 begins.
This page is practical hatch guidance, not a veterinary diagnosis. It is checked against the sources listed below and should be adjusted to your incubator manual, species, and local conditions.
Hatch stage map
Use the page as one step in the full incubation path.
- 1 Prepare
- 2 Incubate
- 3 Lockdown
- 4 Review
What matters most
- Run the incubator before eggs arrive.
- Check temperature with a trusted thermometer.
- Set eggs that are clean, sound, and normally shaped.
- Have the brooder plan ready before hatch week.
Start with an empty test run
Let the incubator run long enough to show its normal pattern before eggs are inside. Beginners often react to every small swing, but the useful question is whether the machine settles into a steady range in the room where it will actually run.
- Place the incubator away from direct sun, drafts, and heater vents.
- Check that the fan, turner, water channels, lid seal, and display all work.
- Use a separate thermometer or hygrometer if the built-in display has not been checked.
Choose eggs that give the embryo a fair start
The egg is the chick’s first room. Cracks, heavy dirt, odd shapes, and rough handling all make the hatch harder before incubation begins.
- Avoid cracked, leaking, very dirty, very small, very large, or badly misshapen eggs.
- Handle eggs gently and keep the large end slightly up during storage.
- Do not mix unknown set dates in one batch unless the hatch plan accounts for it.
Write the hatch plan before day 1
A written plan reduces panic later. Once the set date is recorded, candling, lockdown, hatch window, and result review all become easier to follow.