The producers of Pillsbury Unbleached All-Purpose Flour, used by many home bakers, have voluntarily recalled 12,245 cases sold to retailers, after a random inspection revealed traces of salmonella in one bag.

The cases, each of which contains about eight 5-pound bags, were mostly sold to the Publix supermarket chain and to Winn-Dixie markets, both of which have branches throughout the Southeast. The cases have best if used by dates of either April 19, 2020, or April 20, 2020.

The Food and Drug Administration posted a notice on its Twitter and Facebook accounts Monday. But a spokesman noted that the FDA had so far identified this as a Class 2 recall, which means that the agency is monitoring the situation but has not issued a more formal alert, because no one has reported becoming ill from the flour.

This is the second voluntary recall of flour this year. In January, Gold Medal recalled 5-pound bags of its unbleached flour with a sell-by date of April 20, 2020.

The FDA spokesman said salmonella sickens about 1.2 million Americans a year and can cause a range of gastrointestinal problems, from diarrhea to kidney failure in rare and extreme cases. Both hand washing and cooking food can help kill the bacteria.

In the summer of 2016, companies recalled more than 10 million pounds of flour, as 63 consumers fell ill from Shiga toxin-producing E. coli. That outbreak led to renewed warnings that consumers not sample raw cookie dough, or indeed any raw batter.

This article originally appeared in The New York Times.