"Tainted products" refers to items that have been contaminated or corrupted in some way, making them unsafe or of lower quality for use or consumption. Full definition
With the recent scare of tainted products coming from overseas one of the selling points for me as a Pet Guardian was that Jones Natural Chews are 100 % American Made. (stephscheersandjeers.com)
If you don't remember — and hopefully, you do — an issue with tainted products led to more than 100 animal deaths and the recall of thousands of items from retail shelves. (petbusiness.com)
Pet food processing plants may also be inspected by the FDA although many manufacturers will voluntarily recall their products before FDA involvement to limit the bad press that might accompany any deaths or illness from tainted products. (dogsnaturallymagazine.com)