JACKSONVILLE, FL. Back in March 2026, a state inspector walked into a Jacksonville Dunkin Donuts and flagged a plumbing problem that had nothing to do with donuts: the mop sink in the backroom had no backflow prevention device installed below the splitter.
That finding, recorded during a Florida Department of Agriculture and Consumer Services inspection on March 27, was among three violations cited at Dunkin Donuts #346314, a retail bakery with food service located in Jacksonville. The inspection ultimately resulted in the facility meeting sanitation requirements, but three violations remained on the record when the inspector left.
What Inspectors Found
The most serious of the three was the plumbing violation, which the state classifies as a priority foundation item. The inspector's notes read: "Mop sink does not have back flow prevention device installed below the splitter." That finding carries a specific designation, marked "Pf" in state records, meaning it relates to a foundational food safety practice rather than a minor housekeeping matter.
The second violation involved the walk-in freezer. The inspector noted that "the walk in freezer's air ambient thermometer is not accurate," observed in the backroom. An inaccurate thermometer means staff have no reliable way to confirm whether frozen products are being held at safe temperatures.
The third violation was straightforward: the facility's food establishment permit was not conspicuously displayed, as required under Florida statute 5K-4.020(2)(d).
None of the three violations were corrected on site during the inspection.
What These Violations Mean
The backflow violation is the most consequential of the three findings. A backflow prevention device stops contaminated water, whether from a mop bucket carrying cleaning chemicals and floor debris, from flowing backward into a facility's clean water supply. Without one installed below the splitter on a mop sink, there is a physical pathway for that contaminated water to reverse course under certain pressure conditions. In a food service environment, that means potential contamination of water used for handwashing, food preparation, and equipment cleaning.
The faulty freezer thermometer is a quieter but real concern. Temperature control is one of the primary tools a food establishment uses to keep products safe. If the thermometer in a walk-in freezer is reading inaccurately, staff cannot know with confidence whether frozen goods, including baked items, dairy-based products, and prepared foods, are being maintained at proper holding temperatures. The problem is invisible until it isn't.
The missing permit is the least complex of the three findings. State law requires that a food establishment permit be posted where customers can see it. The requirement exists so that members of the public can verify that a facility is operating under a current, valid license. When it is absent, customers have no way to confirm that on their own.
None of the violations at this location involved a stop sale order, and no food products were pulled from service. All three violations were still unresolved when the inspector completed the visit.
The Longer Record
The March 27 inspection is the record available for this facility in the FDACS data. The inspection type was logged as "Met Sanitation Inspection Requirements," meaning the location was not ordered to close and was considered to have satisfied the threshold for continued operation despite the three open violations.
None of the three violations were marked as repeat findings. That means the state did not document these same problems at this location in a prior inspection captured in the available record. Whether the backflow device had been flagged before, or whether the freezer thermometer had previously drawn scrutiny, cannot be determined from the data on hand.
What the record does show is that as of March 27, a facility operating as a retail bakery with food service was running a mop sink without a required plumbing safety device, monitoring frozen product storage with a thermometer the inspector described as inaccurate, and displaying no permit for customers to see. All three of those conditions were left unresolved at the close of the inspection.
What Comes Next
The facility met the overall sanitation threshold during the March visit, so no emergency closure was ordered and no products were pulled. But the three violations, including the priority foundation plumbing finding, were not corrected before the inspector left. Whether those items were addressed in the days following the inspection is not reflected in the available data.
The backflow device remains the most concrete unresolved item. It is a physical installation, not a training issue or a paperwork gap. Either a compliant device is in place below the mop sink splitter or it is not.