How to Hatch Chicken Eggs: Incubation Tips for a Successful Hatch
Hatching chicken eggs is one of the most exciting parts of raising poultry. Whether you are incubating locally collected eggs or carefully packed hatching eggs that traveled through the mail, a little preparation can make the entire process feel much less intimidating.
Although no hatch is completely predictable, maintaining stable conditions and knowing what to expect can give your chicks the best possible start. This guide explains how to hatch chicken eggs, from unpacking shipped eggs through candling, lockdown, hatch day, and moving the chicks into the brooder.
What to Do When Hatching Eggs Arrive
Carefully unpack your hatching eggs as soon as they arrive. Inspect each egg for cracks, leaking contents, or obvious damage, but handle them gently. Small cracks can sometimes be difficult to see, so examine the shells in good lighting.
Never wash hatching eggs. Eggshells have a natural protective coating called the bloom, which helps prevent bacteria from entering through the shell’s pores. Washing can remove that protection and may reduce the egg’s chance of developing successfully.
Place the eggs pointed end down, with the rounded end and air cell facing up. Because eggs from The Happy Henstead are shipped pointy side down, you can leave them upright in their shipping box while they rest.
Allow shipped hatching eggs to rest for approximately 4–12 hours before placing them in the incubator. Resting gives the egg contents and air cells time to settle after traveling. Keep the eggs at a comfortable room temperature while they rest—never place them in the refrigerator.
Prepare the Incubator Before Setting Eggs
Preheat your incubator and allow it to stabilize before adding the eggs. It is much easier to make adjustments while the incubator is empty than after your eggs are inside.
The correct incubation temperature depends on the incubator’s design, including whether it has a circulating fan. Follow the temperature recommended by your incubator’s manufacturer rather than relying on one universal setting.
Use reliable thermometers and hygrometers to monitor conditions. Built-in displays are convenient, but they are not always perfectly accurate. Placing a separate, calibrated thermometer and hygrometer inside the incubator can help you catch discrepancies before they affect your hatch.
Once the eggs are added, avoid reacting to every brief temperature change. Opening the incubator or adding room-temperature eggs will temporarily lower the reading. Give the incubator time to recover before changing its settings.
If you are still shopping for your incubator, a lot of people love the maticoopx incubator. While I have used this one, it is not my favorite because it is very hard to clean. I prefer this 12 egg incubator or this 48 egg incubator. I prefer the 48 egg incubator because it adjusts the humidity and keeps it to your settings. I also suggest having a hygrometer in each incubator because the ones in the incubators are not always accurate and can stop working.
What Humidity Should You Use for Chicken Eggs?
Incubation humidity may range from approximately 40–60%, depending on the eggs, incubator, and surrounding environment. The goal is to keep humidity relatively consistent while allowing the eggs to lose the appropriate amount of moisture.
At The Happy Henstead, I typically incubate heavily bloomed and deeply pigmented eggs at approximately 47% humidity. For most other eggs, I use humidity closer to 55%.
These numbers are a starting point rather than an absolute rule. Your home’s natural humidity, incubator design, egg size, shell porosity, and bloom can all influence moisture loss. Watching air-cell growth when candling can help you decide whether your humidity needs to be adjusted.
Avoid repeatedly allowing the incubator to become extremely wet and then completely dry. Stable conditions are generally more important than chasing a precise number throughout the day.
How Often Should Hatching Eggs Be Turned?
Developing chicken eggs must be turned regularly during the first 18 days of incubation. Turning prevents the embryo from sticking to the inner shell membrane and supports healthy development.
Most modern incubators include an automatic turner. If yours does not, turn the eggs by hand at least 3–5 times each day. An odd number of turns helps prevent the eggs from resting on the same side every night.
Wash and dry your hands before handling the eggs. Marking opposite sides with a light pencil symbol can help you keep track of which eggs have been turned. Never use a permanent marker or anything that could damage or contaminate the shell.
Incubating Shipped Hatching Eggs
Shipping can sometimes cause loose, saddled, or detached air cells. This does not automatically mean the egg cannot hatch. Many shipped eggs with imperfect air cells still develop into healthy chicks.
Keep shipped eggs upright with the air cell at the top while they rest. Handle and turn them gently once incubation begins. If the air cells appear badly damaged, some hatchers choose to keep the eggs upright during incubation rather than laying them horizontally.
Shipping can affect hatchability even when eggs are fresh, fertile, and packed extremely carefully. Temperature exposure, vibration, delays, and rough handling are outside the breeder’s control. For that reason, hatch rates for shipped eggs cannot be guaranteed.
When and How to Candle Chicken Eggs
Candling allows you to check development by shining a bright light through the shell in a dark room.
Candle the eggs around Days 8–10. In light-colored eggs, you may see branching blood vessels, a dark embryo, and movement. Eggs that remain completely clear at this stage are generally infertile or did not begin developing.
However, do not discard an egg simply because you cannot see inside it clearly. Dark brown, olive, heavily pigmented, and heavily bloomed eggs can be extremely difficult to candle. If you are uncertain and the egg does not smell, leak, or show another sign of deterioration, give it more time and check again later.
Candle again on Day 18 before lockdown. A normally developing egg will appear mostly dark, with a visible air cell at the rounded end.
What Is Lockdown During Egg Incubation?
Lockdown begins on Day 18 for chicken eggs. At this point, stop turning the eggs and remove or disable the automatic turner. Position the eggs for hatching according to your incubator’s instructions.
Increase the humidity to approximately 60–70%. Higher humidity helps prevent the inner membranes from drying too quickly while chicks pip and hatch.
After lockdown begins, avoid opening the incubator unnecessarily—especially after you see the first external pip. Opening the incubator can cause a rapid drop in humidity that may dry and tighten the membrane around a hatching chick.
What to Expect on Hatch Day
Most chicken eggs hatch around Day 21, but healthy chicks may arrive a little earlier or later. Incubator temperature, egg size, breed, and normal biological variation can all affect the timeline.
Hatching requires patience. A chick may rest for many hours between making its first external pip and fully emerging from the shell. This is normal and does not necessarily mean the chick is stuck.
Resist the urge to assist too quickly. Prematurely opening the shell can cause bleeding if the chick has not finished absorbing its blood vessels or yolk. Assistance should be reserved for carefully evaluated situations rather than used simply because a hatch is taking longer than expected.
Leave newly hatched chicks in the incubator until they are dry and fluffy. They can remain there safely while the remaining eggs continue to hatch. Once the chicks are dry, transfer them to a warm, fully prepared brooder with appropriate bedding, chick feed, and fresh water.
The Secret to a Better Hatch
The best hatching results come from consistency, observation, and patience. Every incubator, home environment, shipment, and group of eggs is different. Monitor temperature and humidity with dependable instruments, follow your incubator’s instructions, and keep notes about what works best in your setup.
Even under ideal conditions, not every fertile egg will hatch. When you begin with fresh, carefully handled hatching eggs and maintain stable incubation conditions, however, you are giving each developing chick the strongest possible chance.
Happy hatching!
— The Happy Henstead