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Foreign Object Detection in Snack Foods Like Potato Chips and Puffed Snacks – Challenges and Solutions

2025-08-02

Puffed snacks such as potato chips, shrimp crackers, and corn sticks are loved by consumers worldwide for their crispy texture and rich flavors. However, during mass production, small metal fragments from worn machine parts, broken wires, or packaging debris can accidentally enter the product. This not only risks consumer safety but can also result in costly recalls and brand damage.

Key Challenges in Detection:

Lightweight, Irregular Shapes: Puffed products are loose and airy, making them more sensitive to conveyor belt vibrations, which can cause unstable detection signals.
Packaging Material Interference: Many puffed snacks are packaged in metallized film or aluminum foil bags, which can cause false signals in traditional metal detectors.

Recommended Solutions:

For non-metallized packaging: Use a high-sensitivity, dual-frequency metal detector capable of detecting down to φ0.4 mm stainless steel spheres, φ0.3 mm ferrous, and φ0.5 mm non-ferrous metals.
For metallized or aluminum foil packaging: Switch to an X-ray inspection system that can detect not only metals but also glass, stones, and hard plastics without being affected by the packaging material.
Install the detection system after the packaging machine to ensure 100% inspection of finished products before shipment.

With over 15 years of manufacturing experience, Guangdong Shan’an Technology Co., Ltd. offers complete metal detection and X-ray inspection solutions tailored to snack food production lines, ensuring your brand meets the highest global food safety standards.

For expert advice and solutions, contact us today:
Guangdong Shanan Technology Co., Ltd.
www.foodgrademetaldetector.com
ruth@shanantechnology.com
Whatsapp/Wechat: +86 138 2728 2272

GUANGDONG SHANAN TECHNOLOGY CO.,LTD

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Foreign Object Detection in Snack Foods Like Potato Chips and Puffed Snacks – Challenges and Solutions

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