What Is the Blue Disc Found in a Packet of Sour Cream Crisps?

in front of you. It’s what the presence of that disc suggests

about the safety system that was meant to protect the whole batch.

test piece

source: Test Pieces

What to Do If You Find a Test Piece (or Anything Odd) in Food

Don’t just bin it and move on. A few practical steps go a long way:

Keep the disc and the packaging together. Don’t wash or damage the object.

Photograph the disc, then flip the bag and photograph the batch or lot code and the best-before date.

Contact the manufacturer directly with those photos and details. The batch code tells them where and when it was made.

In many countries you can also report a food safety concern to the relevant agency, which helps flag a systemic issue.

The best-supported answer is that your blue disc is a certified metal-detector test piece that escaped a

There’s more to discover. Continue to the next page for the rest of this article.