Have you ever opened a bag of chips, expecting only crispy, flavorful bites, but instead, you found a mysterious blue disc hidden among them? If so, you’re not alone. Many people have stumbled upon this puzzling object, often embossed with text such as “Ferrous 25mm BST, Cert No. 213026B.” But what does it mean? And more importantly, how did it end up in your snack?
What Is the Blue Disc Found in a Packet of Chips?

At first glance, you might think it’s a promotional token, a production defect, or even an unexpected prize. However, this small blue disc is actually a metal detector test chip used in food processing plants.
This test chip is designed to ensure that food safety equipment—specifically, metal detectors—are working correctly. These chips are strategically placed on the production line to verify whether the detectors can identify and remove potential foreign objects. The blue color helps it stand out from the food, making it easier to spot if something goes wrong.
Why Are Metal Detector Test Chips Used in Food Manufacturing?
Food safety is a top priority for manufacturers. The presence of any foreign object, whether metal, plastic, or glass, poses a significant risk to consumers. To prevent contamination, most factories use metal detectors to scan food items before they are packaged and shipped.
Here’s how the process works:
- Test chips—like the one you found—are deliberately inserted into the production line at set intervals.
- Metal detectors scan the products, ensuring they catch the test chips.
- If the machine detects the chip, it triggers an alert and removes the contaminated item.
- If the chip is NOT detected, it signals a potential failure in the system, and production is halted until the issue is resolved.
Why Did the Test Chip End Up in My Chips?
Now, here’s where things get concerning. The very reason test chips exist is to prevent foreign objects from getting through. So if you found one in your bag of chips, it means something seriously went wrong in the quality control process.
There are a few possible explanations:
- The chip was misplaced and never retrieved – This suggests a human error where someone forgot to remove the test chip after conducting quality control.
- The metal detector failed – This is the most alarming possibility. If the detector failed to catch the test chip, it may have also missed other harmful objects, such as metal fragments or contaminants.
- Production oversight – Sometimes, manufacturing processes get rushed, and crucial safety checks are overlooked.
Regardless of the reason, this is a major red flag that warrants immediate action.
What Should You Do If You Find a Metal Detector Test Chip in Your Food?
If you ever find a test chip inside a food product, take the following steps:
- Do NOT consume any more of the product – There could be other contaminants present that went undetected.
- Keep the packaging and the chip – This will be crucial when reporting the issue.
- Contact the manufacturer immediately – Most brands have customer service lines or emails where you can report quality concerns.
- Request an explanation and possible recall information – If a test chip made it into your food, there’s a chance others might have had the same experience.
- Consider reporting the issue to a food safety authority – Agencies like the FDA (in the U.S.) or the FSA (in the UK) monitor food safety standards and may investigate further.
Will the Manufacturer Face Consequences?
Yes! Food safety protocols require companies to document every test chip used in their quality control process. When a test chip goes missing, production should stop immediately until it is found.
If you report the incident, the company will likely conduct an internal investigation to determine how this breach occurred. In some cases, it may even lead to:

- Product recalls – If multiple reports emerge, the company may be forced to recall entire batches of the affected product.
- Fines and penalties – Regulatory agencies may impose fines if they determine that safety protocols were neglected.
- Operational reviews – Manufacturers might overhaul their processes to prevent similar failures in the future.
Could There Be Other Foreign Objects in My Chips?
The unfortunate reality is that if a test chip made it through, other foreign objects could have as well. While food safety measures exist to minimize risks, errors do happen. There have been cases of consumers finding:
- Plastic or rubber fragments from conveyor belts
- Metal shavings from broken machinery
- Glass pieces from shattered equipment
- Insects or other biological contaminants
This is why quality control is so critical. The presence of a metal detector test chip in your chips raises serious questions about the reliability of the manufacturer’s safety measures.
Final Thoughts: Should You Be Concerned?
Absolutely. While finding a blue test chip in your chips might seem like a bizarre fluke, it’s actually a major food safety failure. These chips are meant to stay on the production line, not end up in your snack bag.
If this happens to you, take action. Report it, demand accountability, and spread awareness. Food safety should never be compromised, and manufacturers must be held to the highest standards to ensure that what we eat is truly safe.
Henry Winkler: Inspiring Kids with Dyslexia

The well-known actor Henry Winkler battled dyslexia all of his life. His parents punished him severely, and he was often made fun of and called names, which had a negative impact on his self-esteem.

He had no idea that there was a cause for his difficulties. Later in life, Winkler made use of his illness to motivate people, particularly young people going through comparable struggles.

Winkler had a difficult time getting to where she is now. Even with his diligence and commitment, he ran into many problems. His parents held a great regard for education and had high standards for him. However, they thought he was not reaching his full potential and frequently called him stupid and lazy. But Winkler knew he was doing the best he could.
Winkler struggled so much in school that he was not only disciplined but also kept from taking part in school events. For the majority of his high school career, he was expected to overcome his “laziness” by spending weeks at a time at his desk. But his problems continued.

Winkler did not allow his dyslexia to stop him in the face of these obstacles. Even after earning a Master of Fine Arts from Yale University, he continued to have trouble reading scripts. His coping technique became improvisation; he would frequently commit the remaining portions of the script to memory. Despite several stumbles during table reads for his well-known part as “Fonzie” in Happy Days, his extraordinary talent and commitment were evident.

Winkler never gave his own dyslexic issues much thought until his stepson’s learning disability was discovered through testing. He was thirty-one when he finally identified the cause of his problems. He said, “I didn’t read a book until I was 31 years old when I was diagnosed with dyslexia,” as he thought back on this revelation. I was afraid of books. I felt uneasy with them.

From annoyance to motivation
When Winkler realized what was causing his reading difficulties, his first reaction was rage. He was angry since it now seemed pointless that he had argued with his parents and received punishment. He chose to utilize his diagnosis as motivation for others, especially kids, and managed to transform his fury into a constructive energy. In a series of children’s books, he created the dyslexic Hank, a pupil in elementary school.
For many kids who struggle with their education, the Hank Zipzer series has struck a chord. Winkler consistently emphasizes, “Your learning challenge will not stop you from meeting your dreams,” in his personal responses to emails from his young readers. The only person who can stop you from realizing your aspirations is you.

Even though Winkler continues to struggle with his own schooling, he has accomplished amazing things. In addition to writing multiple books and receiving multiple honors for his work in Hollywood, he is scheduled to publish his memoir in 2024. Despite all, he maintains his modesty and says that writing novels is his greatest accomplishment, second only to his family.
Henry Winkler’s amazing story began when he was a little child and ended when he realized he had dyslexia and overcame it. His tenacity and fortitude are an inspiration to those going through comparable difficulties. He has demonstrated that it is possible to overcome any challenge and have a positive impact on the world if one has self-belief and perseverance.
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