PepsiCo-owned Quaker Oats issued a voluntary recall on February 26 for 4,550 3.03-oz bags of sweet barbecue flavor Quaker Rice Crisps due to the possible presence of an undeclared allergen in the products.

The impacted snacks, which bear a ‘Best Before’ date of May 29, 2021, possibly contain soy ingredients, Quaker Oats said in a company announcement posted to the US Food and Drug Administration’s (FDA) website Monday.

Those allergic to soy risk a serious or life-threating reaction if they consume the recalled product, the notice stated. Quaker Oats has not received any reports of illnesses linked to the recalled product. The recall does not include any other Quaker products or Rice Crisps flavors or bag sizes.

Recalled product may have been sent to retailers in 21 states, including California, New York, and Illinois. Those in possession of impacted Rice Crisps are urged to return the product to a retailer for a refund or contact Quaker.