According to King Arthur Flour, there's been an expansion to their October 3rd recall of their 5 lb Unbleached All-Purpose Flour.

That recall notice said,

We are taking this voluntary precautionary step because of the potential presence of E. coli 026 which was discovered through sampling. King Arthur Flour has not received any confirmed reports of illnesses related to this product. (Source)

Here's what they announced on November 1st -

King Arthur Flour, Inc. was notified by ADM Milling Co. that three additional product lot codes of Unbleached All-Purpose Flour 5 lb. were omitted from the original data they provided for the press release on October 3, 2019. The additional lot codes and their corresponding “Best Used By” dates are listed below:

Best Used by Date 12/09/19: Lot codes L18A09A & L18A09C

Best Used by Date 01/08/20: Lot code A19A08A

More info here.

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