When it comes to the safety and quality of foil wrapped food products, metal detection technology plays a critical role. But detecting metal in products that are wrapped in foil can be challenging due to the metallic packaging itself. So how is it done?
X-Ray Inspection Systems
The short answer is a food x-ray inspection system. These systems use x-rays to ‘see’ through the packaging and the food product itself. They generate images of the inside of the product, allowing for the detection of contaminants that are otherwise hidden from view. It’s similar to how medical x-rays are used in hospitals, but instead of looking at bones, these machines are examining packaged foods for unwanted metal bits and other foreign objects.
The following happens when x-rays are passed through a product:
- Generation of x-rays: An x-ray tube generates a beam directed at the product.
- Detection: As the foil wrapped food product moves through the beam, sensors on the other side capture the x-rays that pass through, creating a digital image.
- Image Analysis: Software analyses the image for inconsistencies that indicate contamination.
This process happens very quickly, allowing for real time inspection without slowing down production lines.
Will a Food Metal Detector System do the Same Job?
Foil packaging poses a unique challenge to traditional metal detection techniques. Food metal detectors, which work well with other types of packaging, cannot differentiate between the metal in the foil and potential contamination.
That being said, x-ray inspection systems and metal detectors can easily complement each other, and in fact, many companies frequently use both at different points of the production process.
Is an X-Ray Inspection System Worth the Investment?
Yes! Well, we certainly think so anyway! The food industry has employed these detection systems for decades. And it’s not just to help manufacturers comply with food safety regulations. They’re designed to protect consumers and brand reputation, as well as preventing costly recalls.
Are X-ray Inspection Systems Safe?
Absolutely. The level of x-rays used is extremely low and poses no risk to the food or to the operators. After an x-ray inspection, food products are 100% safe to use or consume.
What Types of Contaminants can Be Detected?
X-ray systems are adept at detecting metal, glass, ceramics, some plastics and rubbers, and even bone fragments that could be present in the product.
Choosing the Right X-Ray Inspection System
Looking to purchase an x-ray inspection system? We think it’s worth taking the following into consideration:
- Product Type – Are your packaged food products solid, loose, or liquid?
- Sensitivity Requirements – Determine the risk level and the smallest contaminant size that must be detected.
- Operational Speed – The system should be able to keep up with your production line speeds without causing bottlenecks.
How Can Driver Southall Help?
We’ve supplied many food x-ray inspection systems over the years to help companies keep their food safe for consumption and free from physical contaminants. Our x-ray inspection machines are designed with advanced technology to detect even the smallest contaminants while seamlessly integrating into your production line.
To make an enquiry or for any further information – please get in touch with our team of experts on 01543 687090. We’ll be happy to help.