One Zo

83 Harrison Av, Boston, MA 02111
Asian / Fusion
Last inspected: Dec 11, 2025
47
Score
High Risk

The health department has logged 18 inspections at One Zo, the earliest from 2022. The most recent visit was on Dec 11, 2025. Diners may want to take note: high risk reflects issues that a health inspector considered important.

There hasn't been much movement either way: counts have stayed near four violations per visit across recent inspections.

“Controlling pests” comes up most often, recorded 11 times in the inspection record.

That's lower than the typical Boston restaurant, which scores around 86. Diners may want to weigh the inspection history when deciding to visit.

18
Inspections
1
Critical latest
2
Major latest
8
Minor latest
Inspection History
Dec 11, 2025
Routine
1 critical violation. 2 major violations. 8 minor violations.
View 11 violations
(a)(2) and (b) time/temperature control for safety food hot and cold holding (p)
Inspector notes: Raw eggs observed being left out at room temperature. Discontinue and ensure all TCS foods are being maintained at below 41F.
590.003/3-501.16-P
Using a handwashing sink-operation and maintenance (pf)
Inspector notes: Hand sink in the main kitchen area being blocked by kitchen items/tools. Address and ensure all hand sinks are accessible during all operational hours.
590.005/5-205.11-PF
Controlling pests (pf)
Inspector notes: Evidence of what apears to be rodent droppings in the basement storage area. Clean to remove and provide an up to date pest control report for the re-inspection.
590.006/6-501.111-PF
Maintaining premises unnecessary items and litter (c)
Inspector notes: Excess bags of debris and other miscellaneous items located in the basement area not allowing for proper access from Pest control. Address and remove any and all items not being used for the business. Also esnure all area's of the basement storage are accessible by pest managment in order for them to do their job efficiently.
590.006/6-501.114-C
(a) certified food protection manager (c)
Inspector notes: Food Allergen Certification wiith a past expiration date from 10/31/2025. Address and provide an up to date Allergen Certification.
590.002(C)/2-102.12-C
Wiping cloths use limitation (c)
Inspector notes: Soiled wiping cloths observed being left out on counter tops. Discontinue and provide a proper sanitizing solution.
590.003/3-304.14-C
Food storage prohibited areas (c)
Inspector notes: Large bags of flour observed being stored on the ground near the satircase to the basement area. Discontinue and ensure all food items are being stored elevated a minimum of 6 inches off the ground.
590.003/3-305.12-C
Thawing (c)
Inspector notes: Frozen raw chicken observed being left out at room temperature to defrost. Discontinue and ensure proper thawing methods are in place.
590.003/3-501.13-C
Nonfood-contact surfaces (c)
Inspector notes: Card board observed being used to cover pots on top of hot holding units. Discontinue and ensure all surfaces remain cleanable durable and smooth.
590.004/4-202.16-C
Nonfood contact surfaces (c)
Inspector notes: Interior of the cabinet storing sugar in the front preparation room visibly soiled and with food spills. Clean to remove. Baement coffin style freezer with excess frost build-up. Defrost and clean to remove. All rodent droppings in the basement storage area to cleaned and removed for the re-inspection.
590.004/4-602.13-C
Floors walls and ceilings-cleanability (c)
Inspector notes: Hood and Ventilation tags with a past expiration date from Sept. 2025. Address and provide up to date tags for the re-inspection.
590.006/6-201.11-C
47
Oct 6, 2025
Routine
1 major violation.
View 1 violation
Controlling pests (pf)
Inspector notes: Rodent droppings observed in basement area. Clean all droppings. Provide an updated pest report.
590.006/6-501.111-PF
90
Aug 12, 2025
Routine
1 major violation.
View 1 violation
Controlling pests (pf)
Inspector notes: Rodent droppings observed in basement area. Clean all droppings. Provide an updated pest report.
590.006/6-501.111-PF
90
Jul 25, 2025
Routine
3 major violations. 3 minor violations.
View 6 violations
Controlling pests (pf)
Inspector notes: Rodent droppings observed in basement area. Gnawed carboard observed in basement area. Clean all droppings. Provide an updated pest report.
590.006/6-501.111-PF
Hand drying provision (pf)
Inspector notes: No paper towels observed in production line hand sink. Provide.
590.006/6-301.12-PF
(a) equipment food-contact surfaces nonfood-contact surfaces and utensils (pf)
Inspector notes: Interior of the ice machine observed with soils inside the interior. Clean to remove.
590.004/4-601.11-PF
System maintained in good repair (c)
Inspector notes: Dump sink observed leaking into container. Repair as necessary.
590.005/5-205.15-C
Effectiveness-hair restraints (c)
Inspector notes: Employee working in kitchen area observed without hair restraint. Provide.
590.002/2-402.11-C
Removing dead or trapped birds insects rodents and other pest (c)
Inspector notes: Soiled snap trap in basement area. Remove as necessary.
590.006/6-501.112-C
64
Apr 9, 2025
Routine
1 major violation.
View 1 violation
Controlling pests (pf)
Inspector notes: Multiple areas in basement observed with rodent droppings. Clean and sanitize the area. Provide updated pest report.
590.006/6-501.111-PF
90
Mar 24, 2025
Routine
1 major violation.
View 1 violation
Controlling pests (pf)
Inspector notes: Multiple areas in basement observed with rodent droppings. Clean and sanitize the area. Provide updated pest report.
590.006/6-501.111-PF
90
Feb 26, 2025
Routine
3 major violations. 2 minor violations.
View 5 violations
Where to wash (pf)
Inspector notes: Employee observed washing hands in prep sink. Discontinue. Wash hands only in dedicated hand sinks.
590.002/2-301.15-PF
Using a handwashing sink-operation and maintenance (pf)
Inspector notes: Production area hand sink blocked by shelf. Person in charge corrected.
590.005/5-205.11-PF
Controlling pests (pf)
Inspector notes: Multiple areas in basement observed with rodent droppings. Clean and sanitize the area. Provide updated pest report.
590.006/6-501.111-PF
Nonfood contact surfaces (c)
Inspector notes: Food debris observed on ceiling tiles above production area. Clean to remove.
590.004/4-602.13-C
Effectiveness-hair restraints (c)
Inspector notes: Employee on production line observed without hair restraint. Provide.
590.002/2-402.11-C
67
Dec 16, 2024
Routine
1 minor violation.
View 1 violation
Cleaning ventilation systems nuisance and discharge prohibition (c)
Inspector notes: Hood sticker observed expired. Schedule cleaning appointment.
590.006/6-501.14-C
95
Dec 3, 2024
Routine
2 major violations. 3 minor violations.
View 5 violations
Where to wash (pf)
Inspector notes: Employee observed washing hands in prep sink. PIC spoke to employee to wash hands in dedicated hand sink.
590.002/2-301.15-PF
Hand drying provision (pf)
Inspector notes: No paper towels in front production area hand sink. Corrected on site.
590.006/6-301.12-PF
Cleaning ventilation systems nuisance and discharge prohibition (c)
Inspector notes: Hood sticker observed expired. Schedule cleaning appointment.
590.006/6-501.14-C
Nonfood contact surfaces (c)
Inspector notes: Floor has soils and debris in basement. Clean to remove.
590.004/4-602.13-C
Outside receptacles (c)
Inspector notes: Grease barrell observed with open lid and grease build up. Clean can and ensure lid is secure.
590.005/5-501.15-C
70
Sep 6, 2024
Routine
1 major violation.
View 1 violation
(a)-(p) person-in-charge-duties (pf)
Inspector notes: Ice cream observed in establishment without frozen dessert permit. Strawberry milkshake on menu. Add frozen desserts to permit by emailing isdhealth@boston.gov.
590.002(D)/2-103.11-PF
90
Aug 19, 2024
Routine
1 critical violation. 1 major violation. 2 minor violations.
View 4 violations
(a)(2) and (b) time/temperature control for safety food hot and cold holding (p)
Inspector notes: Cracked eggs left out in ambient air at 60F. Person in charge indicated they had just been cracked when establishement opened thirty minutes prior. Returned to refrigeration.
590.003/3-501.16-P
(a)-(p) person-in-charge-duties (pf)
Inspector notes: Ice cream observed in establishment without frozen dessert permit. Strawberry milkshake on menu. Add frozen desserts to permit by emailing isdhealth@boston.gov.
590.002(D)/2-103.11-PF
Food storage containers identified with common name of food (c)
Inspector notes: All donut toppings in back of house observed unlabled. Provide labels.
590.003/3-302.12-C
Removing dead or trapped birds insects rodents and other pest (c)
Inspector notes: Soiled snap trap in basement. Remove.
590.006/6-501.112-C
70
Apr 2, 2024
Routine
1 critical violation. 1 major violation. 7 minor violations.
View 9 violations
Packaged and unpackaged food-separation packaging and segregation (p)
Inspector notes: Eggs stored above ready to eat foods. Person in charge corrected.
590.003/3-302.11-P
Using a handwashing sink-operation and maintenance (pf)
Inspector notes: Warewash area hand sink observed with equiptment inside sink. Ensure sink is only used for hand washing.
590.005/5-205.11-PF
Removing dead or trapped birds insects rodents and other pest (c)
Inspector notes: Soiled trap in basement area. Remove.
590.006/6-501.112-C
Ventilation hood systems filters (c)
Inspector notes: Hood sticker observed expired. Schedule cleaning appointment.
590.004/4-202.18-C
In-use utensils between-use storage (c)
Inspector notes: Handle of scoop obsevred inside ice bin. Person in charge corrected.
590.003/3-304.12-C
Miscellaneous sources of contamination (c)
Inspector notes: Bug zapper stored above bulk food products and in close proximity to cook line. Move to prevent potential contamination.
590.003/3-307.11-C
Effectiveness-hair restraints (c)
Inspector notes: Prep employee observed without proper hair restraint. Provide.
590.002/2-402.11-C
Nonfood contact surfaces (c)
Inspector notes: Soils in storage cabinet in front counter area. Debris under donut case area. Clean to remove.
590.004/4-602.13-C
Handwashing signage (c)
Inspector notes: Provide hand wash only sign in front boba area hand sink.
590.006/6-301.14-C
55
Jan 2, 2024
Routine
1 minor violation.
View 1 violation
Cleaning ventilation systems nuisance and discharge prohibition (c)
Inspector notes: Hood sticker expires this month. Scheduled for 12/24
590.006/6-501.14-C
95
Dec 11, 2023
Routine
3 minor violations.
View 3 violations
Cleaning ventilation systems nuisance and discharge prohibition (c)
Inspector notes: Hood sticker expires this month. Provide cleaning date.
590.006/6-501.14-C
Nonfood contact surfaces (c)
Inspector notes: Interior of cabinet under service station sinks with spills and stains. Interior of opttings refrigerator with spills. Rat droppings in basement and under 3 compartment sink. Top of grease trap soiled. Clean all areas to avoid attracting pests
590.004/4-602.13-C
Removing dead or trapped birds insects rodents and other pest (c)
Inspector notes: Dead rat on trap in basement. Remove dead pests regularly to prevent contamination. Reviewed pest reports
590.006/6-501.112-C
86
Aug 31, 2023
Routine
1 critical violation. 6 major violations. 3 minor violations.
View 10 violations
Before use after cleaning (p)
Inspector notes: Sanitizer at 3 compartment sink not set up. Staff observed washing and rinsing food contact equipment without sanitizing step. Retrain staff to wash rinse sanitize correctly to prevent contamination
590.004/4-702.11-P
Sanitizing solutions testing devices (pf)
Inspector notes: No test strips on site for chlorine or quats sanitizers. Provide test strips and train staff to correctly mix sanitizer.
590.004/4-302.14-PF
Clean-up of vomiting and diarrheal events (pf)
Inspector notes: No vomit/diarrhea clean up kit or procedures on site. Provide
590.002/2-501.11-PF
(a)-(p) person-in-charge-duties (pf)
Inspector notes: Staff unable to correctly set up 3 compartment sink to properly wash/sanitize food conta equipment and utensils. Hand sink with soap or towels. PIC needs to take active managerial control and retrain staff to properly wash rinse and sanitize equipment. Retrain staff on when and how to preperly wash hands to rpevent contamination. Allergen awareness expired. Update as needed
590.002(D)/2-103.11-PF
Controlling pests (pf)
Inspector notes: Rat droppings throughout basement. Clean and monitor for activity. Provide current pest report. Discard unused boxes and store boxes off the floor to avoid attracting pests and to allow for thorough cleaning.
590.006/6-501.111-PF
Hand drying provision (pf)
Inspector notes: Kitchen hand sink without paper towels Ensure hand sinks have soap and towels at all times
590.006/6-301.12-PF
Handwashing cleanser availability (pf)
Inspector notes: Service line hand sink without soap Ensure hand sinks have soap and towels at all times
590.006/6-301.11-PF
Wiping cloths use limitation (c)
Inspector notes: Soiled wiping cloths stored on counter. Store wiping cloths in sanitizing solution between uses.
590.003/3-304.14-C
Cleaning ventilation systems nuisance and discharge prohibition (c)
Inspector notes: Exhaust hood expired and visibly soiled. Provide cleaning date.
590.006/6-501.14-C
Removing dead or trapped birds insects rodents and other pest (c)
Inspector notes: Dead rat and roaches observed in basement. Clean and maintain
590.006/6-501.112-C
41
Mar 15, 2023
Routine
3 major violations. 1 minor violation.
View 4 violations
Controlling pests (pf)
Inspector notes: 1 dead rat in basement. Rats droppings in basement and kitchen. Pest report indicates rat activity. Provide plan for controlling rats on premises.
590.006/6-501.111-PF
(a)-(p) person-in-charge-duties (pf)
Inspector notes: No staff can set up 3 compartment sink or sanitizer. Retrain staff to properly wash rinse and sanitize equipment. Staff not washing hands. Retrain staff for when and where to wash hands with soap and hot water.
590.002(D)/2-103.11-PF
Sanitizing solutions testing devices (pf)
Inspector notes: No test strips for quats sanitier. Provide quats test strips.
590.004/4-302.14-PF
(a) certified food protection manager (c)
Inspector notes: Certification is expired. Provide updated certification for Food Protection Manager.
590.002(C)/2-102.12-C
70
Mar 8, 2023
Routine
3 critical violations. 6 major violations. 1 minor violation.
View 10 violations
Hot water and chemical-methods (p)
Inspector notes: No hot water for warewahing at 3 compartment sink or hand sinks. Voluntary closure
590.004/4-703.11-P
Cleaning procedure (p)
Inspector notes: No hot water for hand washing. Provide plumber's report for why hot water is not working and what if any repairs are required or have been performed.
590.002/2-301.12-P
Manual and mechanical warewashing equipment chemical sanitization-temperature ph concentration and hardness (p)
Inspector notes: 3 compartment sink with soiled dishes. No sanitizer set up for warewashing.
590.004/4-501.114-P
Manual warewashing equipment wash solution temperature (pf)
Inspector notes: No hot water for warewashing. Provide plumber's report for why hot water stoped working and what if any repairs are required.
590.004/4-501.19-PF
(a)-(p) person-in-charge-duties (pf)
Inspector notes: No staff can set up 3 compartment sink or sanitizer. Retrain staff to properly wash rinse and sanitize equipment. Staff not washing hands. Retrain staff for when and where to wash hands with soap and hot water.
590.002(D)/2-103.11-PF
Sanitizing solutions testing devices (pf)
Inspector notes: No test strips for quats sanitier. Provide quats test strips.
590.004/4-302.14-PF
Handwashing cleanser availability (pf)
Inspector notes: No hand soap at hand sink at service line. No hand washing observed. Hand sinks must have towels and soap at all times.
590.006/6-301.11-PF
Controlling pests (pf)
Inspector notes: 1 dead rat in basement. Rats droppings in basement and kitchen. Pest report indicates rat activity. Provide plan for controlling rats on premises.
590.006/6-501.111-PF
Using a handwashing sink-operation and maintenance (pf)
Inspector notes: Hand wash sink in kitchen obstructed by shelf. No hand washing observed. Remove shelf to ensure access to hand sink for employees.
590.005/5-205.11-PF
(a) certified food protection manager (c)
Inspector notes: Certification is expired. Provide updated certification for Food Protection Manager.
590.002(C)/2-102.12-C
33
Sep 21, 2022
Routine
2 major violations. 4 minor violations.
View 6 violations
Controlling pests (pf)
Inspector notes: Multiple glue traps full of dead roaches in basement. Rat droppings in basement and under dish machine. Clean basement remove dead roaches consult licensed pest control as needed. Provide pest report to ISD.
590.006/6-501.111-PF
Using a handwashing sink-operation and maintenance (pf)
Inspector notes: Trash can blocking hand sink in kitchen. Keep hand sinks clear and stocked with soap and towels at all times.
590.005/5-205.11-PF
Nonfood contact surfaces (c)
Inspector notes: Dust and debris under ice machine. Dust and debris at front counter display. Clean and maintain
590.004/4-602.13-C
Wiping cloths use limitation (c)
Inspector notes: Soiled wiping cloths on counter at service line. Keep cloths in sanitizer solution between uses to prevent cross contamination.
590.003/3-304.14-C
Handwashing signage (c)
Inspector notes: Clearly label hand sink at service line to ensure staff do not contaminate hand sink when dumping beverage cups.
590.006/6-301.14-C
Repairing-premises structures attachments and fixtures-methods (c)
Inspector notes: Damaged gasket on dairy cooler at service line. Repair as needed to ensure proper seal. Possible wall damage under dish machine. Repair to prevent pests from entering.
590.006/6-501.11-C
67

Frequently Asked Questions

When was One Zo last inspected?

The most recent health inspection at One Zo on file is from Dec 11, 2025. The public record contains 18 inspections in total.

What is the most common violation at One Zo?

Across the inspection record, “controlling pests” has been cited 11 times, more than any other issue at One Zo.

How does One Zo compare to other restaurants in Boston?

One Zo most recently scored 47 out of 100, which is lower than the Boston average of 86.

Has One Zo's inspection record improved over time?

Results have been roughly steady. Inspections at One Zo have averaged around four violations per visit across the recent record.

What does a high risk rating mean?

A high risk rating at One Zo means the most recent inspection flagged either critical violations or a substantial number of smaller ones. Diners may want to read the violation details before deciding to visit.

How often is One Zo inspected?

Based on the inspection history on file, One Zo is inspected around six times per year on average.