An Oatly oat-milk distributor has expanded a voluntary recall of its products over ongoing contamination concerns.

The Fresno, Calif.-based Lyons Magnus is now including 18-count/11 fluid ounce cartons of regular Oatly oat milk, as well as 18-count/11 fluid ounce cartons of Oatly chocolate oat milk and 18-count/11 fluid ounce cartons of Oatly Barista Edition oat milk, in the recall.

The recall is being conducted in response to fears of microbial contamination, including from the organisms Cronobacter sakazakii and Clostridium botulinum. Lyons Magnus says that while Clostridium botulinum has not been found in the products, consumers are warned not to consume any of them, even if they do not look or smell spoiled. 

Common symptoms of illness related to Cronobacter sakazakii  could include fever, vomiting and urinary tract infection. Vulnerable and immunocompromised individuals may be more susceptible to infection. 

Clostridium botulinum may cause a severe form of food poisoning that can begin from between six hours to two weeks after eating food containing the toxin. Symptoms may include double vision, blurred vision, drooping eyelids, slurred speech, difficulty swallowing, and muscle weakness. Botulism poisoning can cause respiratory paralysis that leads to death.

Lyons Magnus said the products did not meet commercial sterility specifications.