Kraft is recalling around 6.5 million boxes of mac and cheese as some boxes may contain shards of metal.

It's the 7.25 ounce size boxes with the best when used by dates of September 18th to October 11th of 2015. The boxes have a code "C2" right below the date on each package.

Kraft has confirmed that boxes were sold individually and in multi-packs in the U.S. Check the expiration dates on your mac and cheese before that next batch of chili mac people.

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