Mr. Sub
1498 Plank Road, Sarnia ON N7T 7H3 · Restaurant
Inspection summary
Mr. Sub has been inspected 4 times by Lambton Public Health since July 28, 2025. The most recent inspection, on October 14, 2026, recorded 3 infractions.
1 of 4 inspections on record found no infractions at all. In the past 12 months there were 3 inspections with 6 infractions recorded. The higher-risk findings here relate to: Pests, Cleaning and sanitizing and Food temperature control.
Recent inspections have recorded more infractions than earlier ones, so it is worth reading the latest reports closely.
What these findings mean
Health authorities word their violations differently, so we group them by what they mean for food safety. Higher-risk findings are the ones inspectors treat as critical, because they can directly make someone sick.
PestsHigher risk
Signs of mice, rats, cockroaches or flies, or gaps and clutter that let them get in or hide. Pests carry bacteria and can contaminate food and surfaces, so evidence of activity is treated seriously and usually triggers a follow-up visit.
Recorded 3 times across 3 separate inspections, most recently on October 14, 2026. For example:
There is adequate protection against the entrance of insects, vermin, rodents, dust and fumes into the food premise.
Cleaning and sanitizingHigher risk
Anything that touches food, such as cutting boards, dishes and utensils, must be washed, rinsed and sanitized. Inspectors check dishwasher temperatures, sanitizer strength and how wiping cloths are stored. Poor sanitizing lets bacteria survive from one use to the next.
Recorded 2 times across 2 separate inspections, most recently on October 14, 2026. For example:
Manual dishwashing: Wash, rinse, sanitize technique in a 2 or 3 compartment sink as required
Food temperature controlHigher risk
Bacteria multiply fastest between about 4 °C and 60 °C (40 °F to 140 °F). Inspectors check that cold food stays cold, hot food stays hot, cooked food is cooled quickly, and that staff have accurate thermometers. Temperature problems are one of the most common causes of food poisoning, so these are treated as critical findings.
Recorded once on October 14, 2026. For example:
Sanitize test kit / thermometer is readily available for verifying dishwashing and sanitizing temperatures.
Protecting food from contaminationHigher risk
This covers how food is stored, prepared and displayed: raw meat kept away from ready-to-eat food, food covered and stored off the floor, and nothing dripping or splashing into it. Cross-contamination from raw to cooked food is a direct route for salmonella and E. coli.
Recorded once on July 28, 2025. For example:
Food is protected from potential contamination (i.e. food covered, labelled, off floor, stored on racks, sneeze guard, physical hazards).
Building, plumbing and upkeepLower risk
Floors, walls and ceilings must be smooth and clean, with working lighting, ventilation, plumbing, hot and cold water, and washrooms. These are rarely an immediate food-safety risk on their own, but persistent problems can lead to pest or sanitation issues.
Recorded once on October 13, 2026. For example:
There is a constant supply of potable hot and cold running water under pressure.
About this data
These results come from Lambton Public Health, which inspects food premises and other public facilities in this area. We republish the authority's public disclosure data and refresh it regularly; the official record is the final word.
4 inspections
- Follow-up
3 infractions
- Manual dishwashing: Wash, rinse, sanitize technique in a 2 or 3 compartment sink as required
- Fail to ensure quaternary ammonium compound is at least 200 parts per million at 24°C or greater for at least 45 seconds.
- Fail to use an acceptable method for the wash, rinse, sanitize technique.
- Sanitize test kit / thermometer is readily available for verifying dishwashing and sanitizing temperatures.
- There is adequate protection against the entrance of insects, vermin, rodents, dust and fumes into the food premise.
- Fail to adequately control pests within the premise.
- Manual dishwashing: Wash, rinse, sanitize technique in a 2 or 3 compartment sink as required
- Required
3 infractions
- There is a constant supply of potable hot and cold running water under pressure.
- Fail to supply potable hot and cold running water under pressure in the food preparation area.
- Manual dishwashing: Wash, rinse, sanitize technique in a 2 or 3 compartment sink as required
- Fail to ensure wash / rinse water is maintained at 43°C or greater.
- There is adequate protection against the entrance of insects, vermin, rodents, dust and fumes into the food premise.
- Fail to adequately control pests within the premise.
- There is a constant supply of potable hot and cold running water under pressure.
- Required
0 infractions
- Required
3 infractions
- Food is protected from potential contamination (i.e. food covered, labelled, off floor, stored on racks, sneeze guard, physical hazards).
- Fail to protect food from potential contamination.
- There is at least one food handler or supervisor in the food premise, who has completed food handler training, during every hour in which the food premise is operating.
- Fail to ensure a Certified Food Handler shows valid proof of certification upon request.
- There is adequate protection against the entrance of insects, vermin, rodents, dust and fumes into the food premise.
- Fail to adequately control pests within the premise.
- Food is protected from potential contamination (i.e. food covered, labelled, off floor, stored on racks, sneeze guard, physical hazards).
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