Chicken Egg Incubators: Setup & Hatching Basics

Choose the machine for the job

An incubator controls conditions around developing eggs. A forced-air unit circulates air with a fan; a still-air unit has a different temperature pattern. Settings and thermometer positions are therefore not interchangeable. Read the manufacturer’s instructions before deciding which measurements to use.

Compare usable egg capacity, cleaning access, visibility, alarms, and the ability to verify temperature and humidity independently. Automatic turning can reduce routine work, but it does not remove the need to check that the mechanism operates correctly. Plan what you will do during a power failure.

Set up and verify before adding eggs

1. Clean the machine according to its instructions and place it in a stable indoor location away from sun and draughts.
2. Install independent measuring equipment in the recommended positions.
3. Run it for several days and record temperature and humidity through normal room changes.
4. Test the turner and confirm how to stop it for the final stage.
5. Prepare the brooder, chick feed, safe water equipment, and ongoing care plan.

Use suitable fertile hatching eggs from a known healthy source. Poor storage, damage, or contamination can undermine a hatch even when the incubator performs well. Do not assume ordinary eating eggs are fertile, and do not improvise egg washing or disinfection methods.

Understand the chicken timeline

Mississippi State Extension’s reference programme uses 100°F in forced-air and 102°F in still-air machines, with 58–60% relative humidity for the first 18 days and at least 65% for the final three. Manufacturers may specify different operating targets for their units. Use one appropriate, verified programme rather than averaging unrelated instructions.

Keep measurements and observations together

Record settings, independent readings, water additions, turning checks, and candling observations. Relative humidity percentages are different from wet-bulb thermometer temperatures; do not copy a wet-bulb number into a humidity setting. Keep ventilation functioning while managing moisture.

Avoid repeated lid opening during hatching. If progress seems slow, consult the machine guidance or an experienced poultry professional instead of peeling shells away. An egg may contain a live chick with unabsorbed yolk or active blood vessels even when the shell has begun to open.

Prepare for after the hatch

Have a clean, safely heated brooder with room for chicks to move away from warmth, appropriate starter feed, and a safe drinker ready. Follow the incubator instructions about moving dry chicks. Clean and dry the machine after the hatch and review the records before starting another batch.