Cooked?
Tasty Box Hk Bistro
- gradeGrade B
- inspection score88 pts
- critical violations1
- last inspectedMarch 24, 2026
- address2839 S Diamond Bar Blvd # B, Diamond Bar 91765
Is Tasty Box Hk Bistro clean?
Tasty Box Hk Bistro is currently Grade B from LA County Department of Public Health, Environmental Health, from an inspection on March 24, 2026. Inspectors wrote up 1 critical violation — the kind most directly linked to foodborne illness. On Cooked's ladder that reads mid 😬.
What did inspectors find at Tasty Box Hk Bistro?
These are the violations recorded at the most recent inspection on March 24, 2026, in plain English, with the city's own wording underneath.
- ⚠️FOOD SEPARATED AND PROTECTEDFOOD SEPARATED AND PROTECTED
- ⚠️EQUIPMENT, UTENSILS AND LINENS: STORAGE AND USEEQUIPMENT, UTENSILS AND LINENS: STORAGE AND USE
- ⚠️FLOORS, WALLS AND CEILINGS PROPERLY BUILT, MAINTAINED AND CLEANFLOORS, WALLS AND CEILINGS PROPERLY BUILT, MAINTAINED AND CLEAN
- ⚠️FOOD SAFETY CERTIFICATIONFOOD SAFETY CERTIFICATION
- ⚠️FOOD CONTACT SURFACES: CLEAN AND SANITIZEDcriticalFOOD CONTACT SURFACES: CLEAN AND SANITIZED
- ⚠️PLUMBING: FIXTURES, BACKFLOW DEVICE, DRAINAGEPLUMBING: FIXTURES, BACKFLOW DEVICE, DRAINAGE
- ⚠️NON-FOOD CONTACT SURFACES CLEANNON-FOOD CONTACT SURFACES CLEAN
- ⚠️PERMITS AVAILABLEPERMITS AVAILABLE
When was Tasty Box Hk Bistro last inspected?
Tasty Box Hk Bistro has 2 inspections on record going back to December 18, 2023, averaging 90 points.
| date | result | score |
|---|---|---|
| March 24, 2026 | Grade B | 88 pts |
| December 18, 2023 | Grade A | 92 pts |
Tasty Box Hk Bistro vs City Of Diamond Bar
City Of Diamond Bar runs 92% clean across 168 tracked restaurants — 155 clean, 10 mid, 3 cooked.
Against the 168 spots Cooked tracks in City Of Diamond Bar, this one comes out cleaner than 7% of them.
Other spots in City Of Diamond Bar
How Los Angeles grades restaurants
Los Angeles County posts a letter placard in the window, and unlike New York the score runs the friendly way: higher is better. 90 to 100 points earns an A, 80 to 89 a B, and anything below that a C. The county inspects roughly every six months to a year depending on risk, and a failed inspection can close a kitchen until it is fixed. Because LA’s scores are final at the time of inspection — there is no pending window — a letter can be read straight off the score when the placard field is blank.
Source: LA County Department of Public Health, Environmental Health via LA County Open Data. Cooked refreshes this data daily — this listing's most recent inspection is dated March 24, 2026. Inspection results describe one moment in a kitchen's life, not a permanent verdict.