Diner 24

• gradeGrade B ⏳
• inspection score19 pts
• critical violations2
• last inspectedSeptember 24, 2024
• address283 3 Avenue, Manhattan 10010
• cuisineAmerican
• phone7864736189

Is Diner 24 clean?

Diner 24 is currently Grade B ⏳ from NYC Department of Health and Mental Hygiene (DOHMH), from an inspection on September 24, 2024. Inspectors wrote up 2 critical violations — the kind most directly linked to foodborne illness. On Cooked's ladder that reads mid 😬. There is a newer inspection the city has not ruled on yet, so the posted grade still stands for now.

What did inspectors find at Diner 24?

These are the violations recorded at the most recent inspection on September 24, 2024, in plain English, with the city's own wording underneath.

• 🛠️surfaces / setup not up to code
  Non-food contact surface or equipment made of unacceptable material, not kept clean, or not properly sealed, raised, spaced or movable to allow accessibility for cleaning on all sides, above and underneath the unit.
• 🚿plumbing acting up
  Anti-siphonage or back-flow prevention device not provided where required; equipment or floor not properly drained; sewage disposal system in disrepair or not functioning properly. Condensation or liquid waste improperly disposed of.
• 🌡️fridge is giving… room tempcritical
  Cold TCS food item held above 41 °F; smoked or processed fish held above 38 °F; intact raw eggs held above 45 °F; or reduced oxygen packaged (ROP) TCS foods held above required temperatures except during active necessary preparation.
• 🧤food-handling slipcritical
  Tobacco or electronic cigarette use, eating, or drinking from open container in food preparation, food storage or dishwashing area.

When was Diner 24 last inspected?

Diner 24 has 4 inspections on record going back to August 7, 2024, averaging 35 points.

Diner 24 vs Gramercy

Gramercy runs 81% clean across 263 tracked restaurants — 189 clean, 12 mid, 33 cooked.

Against the 263 spots Cooked tracks in Gramercy, this one comes out cleaner than 18% of them.

Other spots in Gramercy

• A Eleni's Goods
  clean · May 12, 2026
• A For U
  clean · September 8, 2025
• A Isabelle's Osteria
  clean · February 4, 2026
• A Moncheri
  clean · April 17, 2025
• A Bonchon
  clean · August 7, 2025
• A Chip City
  clean · October 9, 2025

See every restaurant inspection in Gramercy →

How New York grades restaurants

New York City health inspectors score violations in points, and lower is better: 0–13 points earns an A, 14–27 a B, and 28 or more a C. Every restaurant is inspected at least once a year, and the letter has to be posted in the window. A restaurant that scores 14 or more on the first inspection of a cycle does not get a letter right away — it stays “Grade Pending” until a re-inspection settles it, which is why some spots here show an hourglass instead of a letter. Cooked only ever shows a letter the city actually posted; we never infer one from a score.

Source: NYC Department of Health and Mental Hygiene (DOHMH) via NYC Open Data. Cooked refreshes this data daily — this listing's most recent inspection is dated September 24, 2024. Inspection results describe one moment in a kitchen's life, not a permanent verdict.