A Pennsylvania-based snack food maker has voluntarily recalled some of its potato chips because they have the potential to be contaminated with salmonella.

Utz Quality Foods, a subsidiary of Utz Brands of Hanover, recalled some Zapp’s and Dirty potato chips. The company was notified that a seasoning containing dry milk powder, sourced from California Dairies and supplied by a third party, may contain salmonella.

The affected seasoning batches tested negative for salmonella prior to use. However, as a precaution, Utz is recalling the limited varieties of Zapp’s and Dirty brand potato chips, according to the U.S. Food and Drug Administration.

No illnesses have been reported.

The potato chips were sold nationwide. A complete list of batch codes and expiration dates is available on the FDA’s website.

The recalled flavors and the corresponding UPCs are:

  • Zapp’s Bayou Blackened Ranch, 1.5 ounces, UPC 83791272917
  • Zapp’s Bayou Blackened Ranch, 2.5 ounces, UPC 83791272924
  • Zapp’s Bayou Blackened Ranch, 8 ounces, UPC 83791272931
  • Dirty Salt and Vinegar, 2 ounces, UPC 83791520148
  • Zapp’s Salt and Vinegar, 1.5 ounces, 60 count, UPC 83791010144
  • Dirty Maui Onion, 2 ounces, UPC 83791520162
  • Zapp’s Big Cheezy, 2.5 ounces, UPC 83791192208
  • Zapp’s Big Cheezy, 8 ounces, UPC 83791192246
  • Dirty Sour Cream and Onion, 2 ounces, UPC 83791520094

Salmonella is an organism that can cause serious and sometimes fatal infections in young children, frail or elderly people, and people with weakened immune systems.

Symptoms in healthy people may include fever, diarrhea (which may be bloody), nausea, vomiting and abdominal pain. In rare cases, the infection can get into the bloodstream and cause more severe illnesses.

People who bought the chips should throw them away and not eat them.

For more information or a refund, call 877-423-0149 from 9 a.m. to 6 p.m. Monday through Friday.