PREWASHED BRANDS OF ICEBERG GARDEN SALAD and COLESLAW that normally bear OK certification, such as Dole, Kroger brand and Marketside [Walmart], currently do not bear the OK symbol on many bags. Even the same store may have a mixture of some bags with the OK and some without. This is due to increased infestation levels in some batches. Little Salad Bar brand at Aldi currently does bear the OK symbol, but this may change. Check every bag for the Kashrus symbol.