In this guide, we’ll explore the most common poultry scalding and plucking machines, how they work, and the best practices to maximize efficiency and bird welfare while meeting food safety standards.

What Is Scalding in Poultry Processing?

Scalding is the process of exposing the bird's skin to hot water or steam to loosen feathers, making them easier to remove during plucking. This step takes place shortly after slaughter and before defeathering.

There are two main types of scalding:

• Soft scalding (50–54°C / 122–129°F): Preserves the yellow outer skin — ideal for presentation.
• Hard scalding (55–64°C / 131–147°F): Removes the outer skin layer for a clean white finish — ideal for processed products.

Common Types of Scalding Equipment

1. Immersion Scalders

These long tanks of heated water submerge birds as they travel on shackles.

• High throughput and uniform scalding
• Easy to automate

2. AeroScalders

Use hot, humid air rather than water for feather loosening.

• Water-saving and hygienic
• Reduced cross-contamination

3. Spray Scalders

Spray hot water over birds rather than immersion.

• Lower water absorption
• Good for small-scale processing

What Is Plucking?

Also known as defeathering, plucking removes feathers after scalding. Effective plucking ensures clean presentation and reduces contamination risk.

Common Types of Plucking Machines

1. Rotary Pluckers

Use rotating drums with rubber fingers to remove feathers.

• High efficiency
• Customizable configurations

2. Tunnel Pluckers

Birds pass through a long tunnel with multiple plucking heads.

• Designed for continuous high-volume processing

3. Manual or Semi-Automatic Pluckers

Used in small-scale or mobile operations.

• Cost-effective for low volumes

Best Practices for Scalding and Plucking

• Keep water temperature consistent: Within ±1°C to prevent over/under scalding.
• Time immersion carefully: Typically 45–120 seconds based on bird size.
• Use proper rubber fingers: Match softness and spacing to bird type.
• Clean equipment daily: Prevent bacterial buildup and prolong machine life.
• Stun birds before scalding: Required for welfare compliance and meat quality.

When to Upgrade or Replace Your Equipment

• Feather removal is inconsistent
• Labor costs are rising
• Water/energy use is excessive
• You face compliance or hygiene issues

PoultryMachinery.com offers refurbished scalders and pluckers from top global brands — fully inspected and ready for production.

Final Thoughts

Efficient scalding and plucking are essential to high-quality poultry processing. Whether you’re running a large automated plant or a small specialty line, the right equipment and practices will help you meet hygiene standards, reduce costs, and improve product quality.

Contact us for help choosing the right scalding and plucking systems for your operation.