7 Best Egg Candlers for Checking Fertility That Every Breeder Swears By

Determining whether an egg is fertile or not is crucial for successful hatching, and the right egg candler makes this process significantly easier. Egg candlers shine light through the shell, allowing you to see the developing embryo inside without breaking the egg. Whether you’re a backyard chicken keeper, a professional breeder, or running a small homestead, having a reliable egg candler in your toolbox can save time and improve your hatching success rates.

Before investing in an egg candling device, you’ll want to understand the different types available and which features matter most for your specific needs. From handheld LED candlers to tabletop models with multiple viewing stations, the market offers plenty of options at various price points. We’ve researched and tested the top models to bring you this comprehensive guide to the 7 best egg candlers currently available.

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Understanding the Importance of Egg Candling for Fertility Checks

What Is Egg Candling and Why It Matters

Egg candling is the process of using bright light to illuminate an egg’s interior to determine fertility and embryo development. This technique allows you to identify viable eggs early, saving incubation resources and improving hatch rates. For backyard chicken keepers and breeders, candling helps track embryo growth, detect potential problems like blood rings, and remove infertile eggs that could contaminate others during incubation.

Key Features to Look for in Quality Egg Candlers

When selecting an egg candler, prioritize models with adjustable brightness for various egg shell colors and thicknesses. Look for LED lights that provide sufficient illumination without generating excessive heat that could harm developing embryos. The best candlers offer ergonomic designs for comfortable handling during extended sessions. Consider portability for field use, battery life for cordless models, and size compatibility with different egg varieties from quail to goose.

Magicfly Bright Cool LED Egg Candler

The Magicfly Bright Cool LED Egg Candler stands out as a reliable tool for both novice and experienced poultry keepers looking to monitor egg development effectively.

Key Features and Specifications

This handheld candler features ultra-bright LEDs that provide consistent illumination without generating excess heat that could harm developing embryos. Powered by 2 AA batteries, it offers excellent portability for checking eggs anywhere on your property. Its ergonomic design includes a soft rubber ring that creates a perfect seal against various egg sizes, preventing light leakage for clearer visibility of internal structures.

Pros and Cons for Fertility Testing

Pros:

• Exceptional brightness allows visibility through darker or speckled eggshells
• Battery-powered design eliminates cord restrictions during use
• Lightweight construction reduces hand fatigue during multiple egg checks
• Affordable price point compared to other high-performance candlers

• Batteries need regular replacement with frequent use
• Less effective on extremely dark-shelled eggs without supplemental darkness
• No built-in magnification for detailed embryo observation

Titan Incubators High Intensity Egg Candler

The Titan Incubators High Intensity Egg Candler stands out as a professional-grade tool designed for serious breeders and poultry enthusiasts who need reliable fertility testing results.

Key Features and Specifications

• Ultra-bright LED technology provides exceptional illumination for all egg types
• Compact design measuring 4.5″ x 2.5″ x 1.5″ for easy handling
• Battery-powered operation (3 AA batteries) for complete portability
• Adjustable rubber ring accommodates various egg sizes from quail to goose
• Durable ABS plastic construction ensures longevity
• One-touch operation with simple on/off switch

Pros and Cons for Fertility Testing

Pros:

• Powerful illumination penetrates even dark-shelled eggs effectively
• Long battery life reduces frequent replacement needs
• Ergonomic design prevents hand fatigue during large batch testing
• No heat emission ensures egg safety during extended examinations

• Higher price point compared to basic candlers
• Batteries not included with purchase
• Slightly heavier than some competing models

SureView Egg Fertility Tester

Brinsea OvaScope Egg Viewer

The Brinsea OvaScope Egg Viewer takes egg candling to a professional level with its specially designed viewing chamber that blocks ambient light and provides enhanced visibility of egg contents.

Key Features and Specifications

• Battery-powered design using 4 AA batteries for convenient portability
• Available in Standard and High Intensity models for different egg types
• Completely blocks ambient light for superior visibility
• Slightly magnifies the egg contents for better embryo observation
• Compatible with webcams for educational demonstrations
• High-efficiency LED illumination that doesn’t generate harmful heat

Pros and Cons for Fertility Testing

Pros:

• Superior visibility with magnification helps accurately identify embryo development
• No heat generation, protecting delicate egg contents
• Versatile for various egg types, including darker shells
• Smooth egg rotation capability for thorough examination

• Premium pricing starting at $79.99 for Standard model
• Higher battery consumption, especially in the High Intensity model
• Completely dependent on battery power

Varshine Digital Egg Candler

Key Features and Specifications

The Varshine Digital Egg Candler features a digital display that enhances visibility during fertility checking. It’s equipped with ultra-bright LED technology that penetrates even dark-shelled eggs without generating harmful heat. This USB-rechargeable unit includes adjustable brightness settings and a specialized rubber seal that fits various egg sizes from quail to duck.

Pros and Cons for Fertility Testing

Pros:

• Digital display provides clear visibility of embryo development stages
• Rechargeable battery eliminates ongoing battery replacement costs
• Adjustable light intensity works well with different egg shell colors
• Compact design fits comfortably in your hand for extended use

• Higher price point compared to basic LED candlers
• Digital components may be more susceptible to damage if dropped
• Shorter battery life when used at maximum brightness settings

Cackle Hatchery Simple Candler

The Cackle Hatchery Simple Candler offers a straightforward solution for hobby farmers and backyard chicken keepers who need reliable egg fertility testing without complex features.

Key Features and Specifications

• Basic handheld design with single LED light source
• Battery-powered operation for maximum portability
• Compact size at approximately 6 inches in length
• Rubber cup that creates a light seal against the egg surface
• Simple on/off switch operation
• Requires 2 AA batteries (typically not included)
• Lightweight at under 4 ounces

Pros and Cons for Fertility Testing

Pros:

• Budget-friendly price point compared to advanced models
• Extremely easy to use for beginners
• Portable design works anywhere without power cords
• Sufficient illumination for white and light-colored eggs
• Durable construction stands up to regular use

• Limited effectiveness on dark-shelled or heavily speckled eggs
• No brightness adjustment options
• Batteries must be replaced regularly with frequent use
• Lacks advanced features found in premium candlers

INCUBATORWAREHOUSE Candling Flashlight

The INCUBATORWAREHOUSE Candling Flashlight, also known as the Incubite or Cool-Lite Egg Candler, delivers reliable performance for egg fertility checking and embryo monitoring.

Key Features and Specifications

• Light Source Options: Available with either incandescent bulb (Cool-Lite) or high-density LED bulbs (Incubite) for efficient illumination
• Power Sources: 110V AC power with a five-foot cord (Cool-Lite) or battery-powered operation (Incubite) for greater flexibility
• Ergonomic Design: Features sturdy rubber grip and soft rubber cup that seals around eggs for enhanced visibility
• Versatile Use: Works effectively even with dark or mottled eggs to determine fertility status

Pros and Cons for Fertility Testing

Pros:

• Exceptional visibility allowing clear view of embryo development even in darker-shelled eggs
• Durable construction with rubber grip designed for comfortable extended use
• Simple operation with rubber lip that prevents light leakage for accurate assessment
• Educational value for monitoring different stages of embryonic development

• Incandescent model (Cool-Lite) generates some heat during extended use
• AC-powered model requires wall outlet access unless using the battery-powered Incubite
• International users may need power converters for the Cool-Lite model (110V to 220/240V)

Lyon Electric Egg Candler

The Lyon Electric Egg Candler stands as a reliable option for both novice and experienced poultry keepers seeking consistent results during the incubation process.

Key Features and Specifications

• Traditional electric design with bright incandescent bulb technology
• 110V AC-powered with 5-foot cord for flexible positioning
• Durable metal housing with a heat-resistant base
• Compact size: approximately 6 inches tall with a 3-inch diameter base
• Includes a rubber gasket that forms a seal against various egg sizes
• Designed specifically for checking chicken, duck, and turkey eggs

Pros and Cons for Fertility Testing

Pros:

• Provides consistent, powerful illumination without battery concerns
• Durable construction stands up to years of regular use
• Perfect for checking larger eggs with thicker shells
• No ongoing battery replacement costs

• Requires access to electrical outlets, limiting mobility
• Generates heat during extended use, requiring careful handling
• Less effective with extremely dark-shelled eggs
• Slightly bulkier than modern LED alternatives

How to Choose the Right Egg Candler for Your Specific Needs

Selecting the perfect egg candler requires matching the tool to your unique situation. The right choice will save you time, money, and frustration while improving your hatching success rates.

Factors to Consider Based on Flock Size

For small backyard flocks (under 20 birds), a handheld candler like the Brinsea OvaView or Cackle Hatchery Simple Candler will serve you well. Medium-sized operations (20-50 birds) benefit from more advanced options like the Varshine Digital Egg Candler with its adjustable settings. Large-scale breeders should invest in the SureView Egg Fertility Tester, which can check up to 30 eggs simultaneously, dramatically reducing your workload during busy hatching seasons.

Budget Considerations and Value for Money

Entry-level candlers like the OvaView Egg Candler Rings ($6.99) work adequately for light-colored eggs on tight budgets. Mid-range options ($20-50) such as the Incubrite Egg Candler offer better visibility for dark-shelled eggs and longer lifespan. Premium candlers like the Brinsea OvaScope ($79.99) justify their higher cost through superior visibility, durability, and specialized features like webcam compatibility for documentation or educational purposes. Consider battery requirements too—rechargeable models save money long-term despite higher initial costs.

Proper Egg Candling Techniques for Accurate Fertility Assessment

Finding the right egg candler transforms your hatching experience from guesswork to precision. Whether you’re a backyard hobbyist or serious breeder you’ll notice immediate improvements in hatch rates with the proper equipment.

The seven candlers featured here offer options for every need and budget. From the portable Magicfly LED to the professional-grade Brinsea OvaScope each provides reliable illumination to assess fertility effectively.

Remember that the best candler for you depends on your specific situation. Consider your flock size battery requirements and shell colors when making your choice. With the right egg candler in hand you’ll be well-equipped to monitor development enhance success rates and enjoy the rewarding process of hatching healthy chicks.

Frequently Asked Questions

What is egg candling?

Egg candling is a process of using bright light to illuminate an egg’s interior without breaking it. This allows you to assess fertility and monitor embryo development inside the egg. The technique helps identify viable eggs early in the incubation process, saving resources and improving overall hatch rates.

Why is egg candling important for hatching?

Egg candling helps determine which eggs are fertile and developing properly, allowing you to remove infertile or non-viable eggs early. This prevents wasted incubation resources, reduces contamination risks from bad eggs, and improves overall hatch rates. It’s an essential practice for both hobbyists and professional breeders.

When should I candle my eggs during incubation?

For best results, candle eggs at three key stages: 1) Before incubation to check for cracks or defects, 2) Around day 7-10 to verify fertility and early development, and 3) Around day 14-18 to confirm continued development. Avoid excessive candling as it can disrupt embryo development.

What features should I look for in a quality egg candler?

Look for adjustable brightness settings, LED lights for optimal illumination, ergonomic design for comfortable handling, portability for convenient use, good battery life if battery-powered, and compatibility with various egg sizes. The best candlers balance brightness, ease of use, and value.

Can I use a flashlight instead of an egg candler?

While a powerful flashlight can work as a makeshift candler for light-colored eggs, specialized egg candlers offer superior illumination, proper light focus, and features designed specifically for viewing embryo development. Purpose-built candlers provide clearer visibility, especially for dark-shelled eggs.

Are LED egg candlers better than incandescent ones?

LED egg candlers typically offer several advantages: they produce brighter light while generating less heat (which can harm developing embryos during extended candling), use less power for longer battery life, and provide consistent illumination. Most modern candlers use LED technology for these reasons.

How can I tell if an egg is fertile during candling?

A fertile developing egg will show visible veins (resembling a spider web) radiating from a small dark spot (the embryo) after 7-10 days of incubation. You’ll also see a growing air cell at the egg’s wide end. Infertile eggs appear mostly clear with a uniform yolk shadow and no vein development.

Which egg candler is best for dark-shelled eggs?

High-intensity models like the Titan Incubators High Intensity Egg Candler or the Brinsea OvaScope High Intensity provide the powerful illumination needed for dark-shelled eggs. The INCUBATORWAREHOUSE Candling Flashlight is also specifically noted for its effectiveness with dark shells.

Is a digital egg candler worth the extra cost?

A digital egg candler like the Varshine model offers enhanced visibility with features like display screens and adjustable settings, making it easier to identify development stages. For serious breeders or those hatching frequently, the improved accuracy and convenience often justify the higher price.

What’s the best egg candler for beginners on a budget?

The Cackle Hatchery Simple Candler offers a budget-friendly option that’s easy to use for beginners. It provides sufficient illumination for light-colored eggs and has a straightforward design. The Magicfly Bright Cool LED Egg Candler is another affordable yet reliable option for those just starting out.