The FDA warned the bakery after discovering undeclared sesame seeds, signs of rodents and hygiene failures in the rolls.

As part of its enforcement efforts, the U.S. Food and Drug Administration (FDA) sends warning letters to agencies under its jurisdiction. Some letters are not posted publicly until weeks or months after they are sent. Business owners typically have 15 business days to respond to an FDA warning letter. Warning letters are often not issued until the business has been given months or years to correct the problem. Portions of the letter are usually redacted publicly.

The FDA issued warning letters to bakeries in New Jersey and California after inspections found serious food safety violations related to allergen controls, sanitation practices, pest activity, preventative controls and labeling deficiencies.

The FDA said the violations could make the food adulterated under federal law because the products were prepared, packaged or stored in unsanitary conditions that could pose health hazards.