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How Long Do Chicken Eggs Take to Hatch | What Stops Eggs from Hatching

Introduction: Understanding the hatching process of chicken eggs is essential for successful poultry breeding. In this informative guide, we’ll explore the time it takes for chicken eggs to hatch, ranging from 21 to 25 days. Additionally, we’ll delve into the common challenges that can hinder the hatching process and the warm water trick for checking egg viability.

 How Long Do Chicken Eggs Take to Hatch?

Chicken eggs take approximately 21 days to hatch under the care of a broody hen or in an egg incubator. If the incubator’s temperature is too warm, hatching may occur around day 20, while colder temperatures may delay hatching until days 22 or 23. Natural hatching with a broody hen can take up to 23 days.

Reasons for Eggs Not Hatching After 24 Days

If chicken eggs do not hatch after 24 days, several factors may be contributing to this issue:

  • Incorrect humidity levels affecting gas exchange and shell breaking.
  • Low temperatures hindering chick formation.
  • A sick broody hen’s inability to care for the eggs properly.
  • Eggs that were set in the incubator for too long.
  • Infertile eggs or poor breeding conditions.

3. Why Eggs Do Not Hatch After 30 Days

Eggs may not hatch after 30 days due to similar reasons as above, including infertility, improper handling, or inadequate turning. Additionally, opening the incubator during hatching, insufficient humidity, and unstable temperatures can all hinder the process.

4. The Warm Water Trick for Hatching Eggs

The warm water trick is a simple method to check egg viability and assist in the hatching process. Here’s how it works:

  • Warm water between 37.2 and 37.5 degrees Celsius is prepared in a container.
  • Eggs are placed in the warm water, and a lid is used to cover the container.
  • After 24 to 48 hours, eggs that float or move in the water indicate they are alive and healthy, needing more time for hatching.

5. Reasons for Eggs Not Hatching After 21 Days

If chicken eggs do not hatch after the standard 21 days, these factors may be at play:

  • Incorrect turning of eggs in the incubator.
  • Inconsistent temperature and humidity levels.
  • Embryo issues, such as internal membrane ruptures causing dehydration.
  • Infections in the eggs or broody hen.

6. What to Do When Eggs Don’t Hatch in 21 Days


If eggs do not hatch in 21 days, don’t panic. Allow more time for possible delayed hatching. Do not attempt to help the chick out of the egg after it has pipped, as this can harm the chick. Instead, candle the eggs to check for movement and remove any non-viable eggs.


Chicken eggs typically take 21 days to hatch under proper conditions. Temperature, humidity, and egg handling are crucial factors affecting successful hatching. Common challenges, such as incorrect humidity, low temperatures, and egg infertility, can hinder the process. The warm water trick can help assess egg viability. If eggs do not hatch in the standard time frame, be patient, and take appropriate measures to ensure a healthy and successful hatching experience. With proper care and attention, you can enjoy the thrill of watching adorable chicks emerge from their shells.




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