Diner 24

• gradeGrade B ⏳
• grade postedSeptember 24, 2024
• inspection score33 pts
• critical violations3
• last inspectedFebruary 26, 2026 →
• address283 3 Avenue, Manhattan 10010
• cuisineAmerican
• phone7864736189

Is Diner 24 clean?

Diner 24 currently carries Grade B ⏳ from NYC Department of Health and Mental Hygiene (DOHMH). It was posted on September 24, 2024 and still stands. The place has been inspected again since — on February 26, 2026 scoring 33 points — but NYC Department of Health and Mental Hygiene (DOHMH) has not ruled on that visit, so no new grade has been issued. Inspectors wrote up 3 critical violations — the kind most directly linked to foodborne illness. On Cooked's ladder the posted grade reads mid 😬; the numbers above come from the newer visit.

What did inspectors find at Diner 24?

These are the violations recorded at the most recent inspection on February 26, 2026, in plain English, with the city's own wording underneath.

• 🍽️food left out / unprotectedcritical
  Food, supplies, or equipment not protected from potential source of contamination during storage, preparation, transportation, display, service or from customer’s refillable, reusable container. Condiments not in single-service containers or dispensed directly by the vendor.
• 🚿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.
• 🛠️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.
• 🍲hot food sitting too coolcritical
  Hot TCS food item not held at or above 140 °F.
• 🧫food contact surfaces dirty
  Design, construction, materials used or maintenance of food contact surface improper. Surface not easily cleanable, sanitized and maintained.
• 🌡️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.

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 264 tracked restaurants — 194 clean, 12 mid, 34 cooked.

Against the 264 spots Cooked tracks in Gramercy, this one comes out cleaner than 18% of them.

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• A Chip City
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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.

Read the New York ratings guide →

Inspection findings and available history come from the authority’s published records. Cooked checks daily; publication can lag behind an inspection. Read the date on each result and check the official source for newer information.

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 February 26, 2026. Inspection results describe one moment in a kitchen's life, not a permanent verdict.

check your own block 📸

Cooked covers 10 cities on official inspection data — see who's clean, mid, or cooked near you.