The Science Behind Egg Fluorescence

The Science Behind Egg Fluorescence


Why UV Egg Candlers Are Changing the Game for Poultry Keepers

At Uneek Poultry, we believe every hatch should start with confidence — and that begins with inspecting your eggs the smart way. Our newly updated Origin Series UV Egg Candler helps you do just that.

What Is a UV Egg Candler?

A UV egg candler is a special tool that uses ultraviolet light (around 365nm wavelength) to reveal hidden details in an eggshell that are invisible under normal light. Unlike standard candlers that just show shadows inside the egg, UV candlers highlight important surface-level clues that can make or break your hatch.

Why UV Light Reveals More

Eggshells — especially brown ones — contain a compound called protoporphyrin IX, a pigment responsible for the red-brown colouring. When exposed to UV light, this compound fluoresces brightly, revealing more than you’d expect.

Under UV light, you can:

  • Spot hairline cracks and weaknesses
  • Detect surface bacteria or contaminants
  • See shell uniformity and thickness variations
  • Estimate egg freshness based on shell fluorescence

Why Inspecting Before Incubation Matters

Many incubation issues start before the egg even goes into the machine. Contaminated, cracked, or aged eggs are more likely to develop problems during hatching, or worse, spread bacteria to other eggs. A quick UV inspection helps you select only the best candidates for your incubator.

Not for Sterilisation – For Smart Selection

While UV does have antimicrobial properties, we don’t recommend it for sanitising eggs. The real value is in assessment, not disinfection. Think of the UV Candler as your quality control tool before the incubation process begins.

Designed with Poultry Keepers in Mind

Our updated Origin Series UV Egg Candler includes:

  • Brighter high-intensity LED chips
  • Custom TPU candler fitting for all egg sizes
  • Rechargeable battery with extended life
  • Robust stainless steel body and carry case
  • Professional 365nm UV safety glasses

It’s compact, powerful, and ready to go out of the box — exactly what you’d expect from Uneek Poultry.

Trusted by Hatchers Around Australia

We’ve been working with poultry keepers of all sizes for over a decade. The updated UV Candler is the result of real feedback, in-house testing, and our commitment to helping you hatch smarter.

Ready to Upgrade Your Hatch Game?

Our Origin Series UV Candler is available now and we highly recommend it as a must-have tool in your incubation kit.

Explore the Origin UV Egg Candler


Uneek Poultry is proud to be a leader in poultry incubation tools across Australia. All content © Uneek Poultry.

Need help choosing the right tools? Reach out to our team at info@uneekpoultry.com.au


Leave a comment

Please note, comments must be approved before they are published