The O/U certifies Better Made Potato Chips (plain) as an O/U Pareve product. Some Cheddar and Sour Cream Chips, which are certified as O/UD (dairy), products were mistakenly packed in 10 oz. plain potato chip bags. The effected product has a use date of Aug 10, 2019, a UPC code of 041633063048 and the following lot numbers: #62090431442 through #62090431520 and #85100431442 through #85100431520.