Positive listeria test prompts mushroom recallPositive listeria test prompts mushroom recallPositive listeria test prompts mushroom recallPossible listeria contamination prompted the Canadian Food Inspection Agency and Greenwood Mushroom Farm to recall packaged, sliced fresh mushroooms.

Canada’s equivalent to the U.S. Food and Drug Administration issued an alert Dec. 10 warning the public not to eat three brands of sliced mushrooms from the company. All recalled mushrooms have the code WBB-MA 2011/DE/10.

The mushrooms have been distributed in the province of Ontario, but no illnesses had been reported, according to the food safety agency.

The recalled mushrooms have a use-by date of Dec. 10. The specific brands and package sizes included in the recall are:

  • Windmill Farms triple washed sliced mushrooms; 8-ounce; UPC 8 56243 00043 3;
  • Windmill Farms triple washed sliced mushrooms; 16-ounce; UPC 8 56243 00062 4;
  • Compliments sliced mushrooms; 8-ounce; UPC 0 68820 10090 4; and
  • Longo’s white sliced mushrooms; 8-ounce; UPC 7 72468 01001 2.

Canadian officials did not specify in the alert why they suspect listeria contamination.

Garfield Balsom, a food safety and recall specialist with the CFIA said Dec. 12 the agency received word of a positive test result Dec. 10 and that the investigation is in its early stages.

“One positive sample was found during a routine monitoring test” Balsom said, adding that he was not sure if the sampling had been conducted by the Ontario provincial food safety staff or the federal agency.

The alert said: “The processor, Greenwood Mushroom Farm, Ashburn, ON, is voluntarily recalling the affected products from the marketplace. The CFIA is monitoring the effectiveness of the recall.”