MARATHON, FL. State inspectors walked into a Marathon seafood market in late April and found food that had not been cooked to the required minimum temperature, shellfish with no identification records, improperly stored toxic substances, and surfaces that had not been properly cleaned or sanitized — six high-severity violations in a single visit, and the restaurant stayed open.
The April 29 inspection of Grassy Key Land and Sea Market at 58152 Overseas Hwy produced one of the more alarming single-visit records in Monroe County this year. Six of the seven violations documented that day were classified as high severity. The one remaining violation was intermediate.
What Inspectors Found
The most direct danger to customers was food not cooked to the required minimum temperature. At a market that sells and presumably prepares seafood and other proteins, undercooking means pathogens that heat is supposed to destroy can reach the table alive.
Inspectors also found that the market lacked adequate shell stock identification records. Shellfish sold here, whether oysters, clams, or mussels, could not be traced back to a certified source. That is a distinct problem from temperature or sanitation: it means that if a customer got sick, investigators would have no paper trail to follow.
Toxic substances were improperly identified, stored, or used. The record does not specify which substances or where they were stored, but the violation category covers chemicals that, if they contaminate food, cause illness that looks nothing like a typical foodborne outbreak and can be far more acute.
Food contact surfaces had not been properly cleaned or sanitized. The market also had no consumer advisory posted for raw or undercooked foods, meaning customers who are elderly, pregnant, immunocompromised, or otherwise at elevated risk had no warning that some items on offer may not have been fully cooked.
Even the handwashing was wrong. Inspectors cited improper hand and arm washing technique, meaning that whatever handwashing employees were doing, it was not sufficient to remove pathogens before they touched food.
What These Violations Mean
The cooking temperature violation is the most straightforward of the six. Bacteria like Salmonella survive in poultry cooked below 165 degrees Fahrenheit. In seafood, Vibrio and other pathogens require sufficient heat to be neutralized. A market that sells raw and prepared seafood along the Overseas Highway, where much of the product is consumed the same day, has almost no margin for error on this point.
The shellfish traceability failure compounds the cooking violation. Oysters, clams, and mussels are frequently eaten raw or barely cooked, which means the product itself must come from a certified, monitored harvest area. Without shell stock identification tags and records, there is no way to know where the shellfish originated, whether that water was tested, or whether the harvest was legal. If a customer became ill, health officials would have nowhere to start.
Improperly stored or identified toxic substances sit in a different category from biological contamination. Chemical exposure from cleaning agents or pesticides that reach food can cause symptoms within minutes, not hours, and the source is often harder to identify than a bacterial illness. The presence of this violation at a food market that handles product customers take home or eat on-site is not a paperwork problem.
The missing consumer advisory is the violation that removes a customer's ability to protect themselves. Without a posted notice that some foods are served raw or undercooked, a pregnant woman, a person on chemotherapy, or an elderly customer with no idea they are in a high-risk group has no information to act on. Grassy Key Land and Sea Market gave them none.
The Longer Record
The April inspection was the market's worst on record, but it was not the market's first serious inspection. State records show five inspections on file, with 29 total violations documented across those visits.
The October 2025 inspection turned up one high-severity violation. The July 2025 inspection found three high-severity and three intermediate violations. The February 2025 inspection was clean, with zero violations at either severity level. The December 2024 inspection produced one high and two intermediate violations.
The pattern is uneven rather than steadily worsening, which makes the April 2026 result harder to explain as a simple drift. A facility that passed cleanly in February 2025 and then accumulated six high-severity violations fourteen months later is not a facility that has been slowly declining. Something changed, or the February visit caught the operation on its best day.
The market has never been emergency-closed. No prior inspection triggered a closure order.
Still Open
Despite six high-severity violations documented in a single inspection, including food not cooked to the required temperature and shellfish with no traceability records, Grassy Key Land and Sea Market was not ordered closed on April 29. It remained open to customers that day and the days that followed.