Why Metal Detection in Food Is Not Easy

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In the past year, pieces of metal originating from a conveyor system were found in ready-to-eat chicken products, metal shavings were found in a package of ground turkey, pieces of metal were embedded in a fully cooked sausage product, and one company received three complaints of metal objects in beef franks.

food metal detector

Why is it so hard to detect metals in food?

The same unpredictable performance can exist when trying to detect metal in food. Metal detection in food is easy when it works—but it doesn’t always work. Audits can fail, detectable metal types and sizes may not be what the food quality manager wants or, worse yet, a piece of metal can escape inside a product where a customer may find it. Clearly, an on-again, off-again contaminant detection approach is not acceptable when it comes to food safety.


There are key barriers to achieving 100% metal-free products

· The metal detector must find anything, anywhere in any product all the time. That can be daunting considering the volume of production from just one line in a day and all the different types of metal pieces that might be part of your factory or in the ingredients.

· Metal detectors use electromagnetic fields to find things that are magnetic and conductive. Most food products are wet, have salt or contain minerals, which when subjected to electromagnetic fields also look magnetic and conductive. Ignoring the product and finding the metal is not as easy as it seems.


Small metal foreign objects have very small signals, and the metal detector is operating in a factory that has many possible noise sources that can confuse the metal detector electronics and software. For example, at any given time:

· Large motors are turning on and off

· Electronics boxes are broadcasting wide spectrums of radiated noise

· Production equipment is vibrating and causing the antenna in the metal detector to move ever so slightly

· Electrical power is surging and dropping

· Temperatures are going from freezing to boiling and back again


These conditions affect results. As you can see, finding the needle in the haystack or a shard of stainless steel in a package of meat can be a formidable challenge.



Because of these challenges, new products has been developed to help dramatically increase the probability of detection. Metal detection may have just gotten a little easier.

· Conveyor Belt Food Metal Detector Conveyor Belt Food Metal Detector

Food metal detectors are widely used in the detection of ferrous and non-ferrous metal impurities in foods such as meat, fungi, candy, beverages, grain, fruits and vegetables, dairy products, aquatic products, health products, additives and condiments.

Conveyor Belt Food Metal Detector

· Professional Conveyor Belt Food Metal Detector Professional Conveyor Belt Food Metal Detector

Food metal detectors are used for the detection of metal impurities in chemical raw materials, rubber, plastics, textiles, leather, chemical fiber, toys and the detection of metal impurities in medicine, health products, biological products, cosmetics, gifts, packaging, paper products, etc. It can be used for the detection of dry goods, moisture and sugar.

Professional Conveyor Belt Food Metal Detector

· Comprehensive all-round food all-metal detector Comprehensive all-round food all-metal detector

JKDC-F500QG comprehensive all-metal detector is mainly used in industries that have higher requirements for sensitivity. It is used to detect broken needles, iron wires or lead, copper, aluminum, tin, stainless steel, etc. that are mixed or lost in raw materials or products. It can also be used to detect metal objects in food, medicine and toys.

Comprehensive all-round food all-metal detector Comprehensive all-round food all-metal detector

Why Choose JKDC Security?

· One-stop security solution

18 years experience offer a one-stop security solution, JKDC SECURITY can help you save time and costs. Worldwide clients across 80 countries, with thousands of stable projects. JKDC SECURITY can offer customized equipment, measurements designed according to your site. For large amounts, the custom logo is available for free.

· Professional production and fast delivery

· Advanced technology and competitive price

· 7/24 online after-sales service

If you are looking for a reliable merchandise of food metal detectors, JKDC Security is a good choice for you. Contact us now!


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