• resultPass
• critical violations0
• last inspectedDecember 18, 2025 →
• address83 Harrison Av, Boston 02111

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Is One Zo clean?

One Zo is currently Pass from Boston Inspectional Services, Health Division, from an inspection on December 18, 2025. No critical violations were recorded at that visit. On Cooked's ladder that reads clean 😇.

What did inspectors find at One Zo?

No failed findings were recorded. Boston Inspectional Services, Health Division marked 11 code checks as passed on December 18, 2025.

When was One Zo last inspected?

One Zo has 39 inspections on record going back to August 3, 2020. The 12 most recent are shown below.

One Zo vs Chinatown

Chinatown runs 86% clean across 297 tracked restaurants — 245 clean, 22 mid, 19 cooked.

Against the 297 spots Cooked tracks in Chinatown, this one comes out cleaner than 14% of them.

Other spots in Chinatown

• ✓ Castle Island Brewing Co/Bardo's Bar Pizza
  clean · July 22, 2026
• ✓ Otto Pizza
  clean · May 11, 2026
• ✓ Banh Mi Huong Que
  clean · April 7, 2026
• ✓ Tatte Bakery & Cafe
  clean · July 6, 2026
• ✓ Top Asian Grocery
  clean · April 13, 2026
• ✓ Cannonball Cafe
  clean · May 6, 2026

See every restaurant inspection in Chinatown →

How Boston grades restaurants

Boston reports inspections as a pass or a fail, with no score and no letter. What separates a bad fail from a trivial one is the violation severity ladder: a single star is a minor issue, two stars is more serious, and three stars marks a critical foodborne-illness risk factor — temperature abuse, bad handwashing, cross-contamination. A restaurant can fail on paperwork alone, which is not the same as failing on food safety. Cooked splits Boston fails accordingly: a fail with a three-star violation reads cooked, a fail on minor items only reads mid.

Read the Boston 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: Boston Inspectional Services, Health Division via Analyze Boston. Cooked refreshes this data daily — this listing's most recent inspection is dated December 18, 2025. Inspection results describe one moment in a kitchen's life, not a permanent verdict.

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