Canadian Restaurant Reheating & Hot Holding Guide

In a commercial food service environment, reheating previously cooked and cooled foods is a high-stakes operational step. Under Canadian public health guidelines and provincial food premises regulations, restaurant operators must manage this transition with strict precision. Improper reheating and hot holding are major contributors to foodborne illness outbreaks across Canada.

To maintain compliance and protect public health, potentially hazardous foods (PHFs)—also referred to as high-risk or time/temperature control for safety (TCS) foods—must be reheated rapidly to an internal temperature of at least 74°C (165°F) and held hot at 60°C (140°F) or higher. This process must be executed within a strict timeframe to prevent the rapid multiplication of foodborne pathogens.

Understanding the operational differences across various provincial jurisdictions, utilizing the correct commercial equipment, and maintaining accurate temperature records are vital responsibilities for Canadian kitchen managers and operators. This guide breaks down the biological risks, outlines specific provincial regulations, provides a copyable daily log template, and highlights critical review points to help keep your establishment compliant and your guests safe.

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1. Scope of Canadian Food Safety Law & Jurisdictional Divisions

Food safety regulation in Canada is a shared responsibility divided among three levels of government:

Federal Jurisdiction (CFIA & Health Canada)

At the federal level, Health Canada sets food safety standards under the *Food and Drugs Act* (FDA) and the *Food and Drug Regulations* (FDR). The FDA applies to all food sold in Canada, strictly prohibiting the sale of contaminated, adulterated, or unsafe food. The Canadian Food Inspection Agency (CFIA) enforces these federal acts and manages the *Safe Food for Canadians Regulations* (SFCR), which primarily govern food imports, exports, and interprovincial trade.

Provincial and Territorial Jurisdiction

While federal rules govern cross-border trade, day-to-day operations of restaurants, cafés, caterers, and food trucks are governed entirely by provincial and territorial public health legislation. Each province enacts its own food premises regulations, establishing specific legal thresholds for cold holding, cooking, reheating, and hot holding.

Municipal and Regional Jurisdiction

Local municipalities and regional health units (such as Toronto Public Health, Vancouver Coastal Health, or Ottawa Public Health) employ Public Health Inspectors (PHIs) or Environmental Health Officers (EHOs). These inspectors conduct on-site audits to enforce provincial regulations, issue operational permits, and manage local public hygiene disclosure systems (e.g., Toronto’s DineSafe programme).

*Disclaimer: This guide is intended for educational purposes only and does not constitute legal or professional advice. Operators must consult their local public health authorities and provincial regulations for specific legal requirements.*

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2. The Biological Risk: Pathogens of Concern during Reheating

The strict time and temperature parameters mandated by Canadian public health authorities are directly dictated by microbial growth and survival curves. While the initial cooking process is designed to eliminate vegetative pathogens such as *Salmonella*, *Escherichia coli*, and *Listeria monocytogenes*, it does not destroy heat-resistant bacterial spores.

When hot food is cooked, cooled, and stored, these dormant spores can survive the initial heat treatment. If the cooling process is slow, or if cold holding temperatures fluctuate above 4°C (40°F), these spores germinate. They return to their active vegetative state and multiply rapidly in the Temperature Danger Zone between 4°C and 60°C (40°F to 140°F).

Pathogens of Concern:

• ***Clostridium perfringens*:** This spore-forming bacterium is commonly associated with bulk-cooked meats, gravies, and stews. Spores survive the cooking process, germinate during slow cooling, and multiply rapidly in anaerobic (oxygen-depleted) environments, such as the centre of a deep stockpot. Reheating rapidly to 74°C (165°F) destroys the vegetative cells before they can produce foodborne toxins in the consumer's digestive tract.
• ***Bacillus cereus*:** Frequently associated with starchy foods like cooked rice, pasta, and potatoes. *B. cereus* produces an emetic (vomiting-inducing) toxin during vegetative growth that is exceptionally heat-stable. This toxin can withstand boiling and high-heat reheating. Therefore, while proper reheating to 74°C kills the bacteria, it will not make temperature-abused, toxin-contaminated starches safe. Rigid cooling and cold holding are the only defenses against *B. cereus* toxins.
• ***Salmonella* spp. and *Listeria monocytogenes*:** These vegetative pathogens do not form spores and are easily killed by heat, but they are frequently reintroduced to cooked, cooled foods through post-cook cross-contamination (e.g., contaminated cutting boards, utensils, or unwashed hands). Reheating serves as a vital secondary "kill step" to eliminate these post-cook contaminants before service.

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3. National Model Code vs. Provincial Regulatory Requirements

To harmonize food safety standards across Canada, the Federal-Provincial-Territorial Committee on Food Safety published the *Food Retail and Foodservices Code*. This model code serves as the scientific foundation for provincial regulations, although specific provincial legislations contain slight variations.

Ontario's Outcome-Based Nuance:

Under Ontario’s *O. Reg. 493/17*, prescriptive internal temperatures were removed from the text of the law itself to allow operators flexibility for innovative methods (such as *sous vide*). However, Section 26(2) mandates that food must be processed in a manner that makes it safe. To enforce this, Public Health Inspectors utilize the *Food Premises Reference Document, 2019*, which details the following evidence-based reheating standards for hot holding:

• Whole Poultry: Must be reheated to 74°C (165°F) for 15 seconds.
• Ground Poultry / Poultry Pieces: Must be reheated to 74°C (165°F) for 15 seconds.
• Food Mixtures containing poultry, egg, meat, or fish: Must be reheated to 74°C (165°F) for 15 seconds.
• Pork / Pork Products / Ground Meat (other than poultry): Must be reheated to 71°C (160°F) for 15 seconds.
• Fish: Must be reheated to 70°C (158°F) for 15 seconds.
• Seafood: Must be reheated to 74°C (165°F) for 15 seconds.

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4. Equipment Limitations: What Can and Cannot Be Used to Reheat Food

A major point of operational failure in commercial kitchens is the improper use of hot-holding equipment for reheating.

Forbidden Reheating Equipment:

• Steam Tables & Bain Maries: These units are designed solely to maintain the temperature of already-hot food. They lack the heating capacity to rapidly drive food through the Temperature Danger Zone. Placing cold food directly into a steam table will result in the food sitting in the danger zone for hours, allowing pathogenic bacteria to multiply and produce heat-stable toxins.
• Soup Kettles: Similar to steam tables, commercial soup warmers are intended for holding and serving, not rapid thermal transfer.
• Chafing Dishes & Warming Drawers: These units are insulated to retain heat, but their heat sources (such as gel fuel canisters or low-wattage elements) are completely inadequate for reheating.

Approved Reheating Equipment:

• Commercial Ranges & Stockpots: Ideal for liquid items like soups, gravies, and sauces. Liquids must be stirred frequently to distribute heat evenly and prevent scorching.
• Convection & Combi Ovens: Excellent for solid items, casseroles, and meats. They facilitate rapid, even thermal transfer.
• Microwave Ovens: Approved for reheating, provided specific steps are followed to eliminate uneven heating:
• The food must be covered to retain moisture and generate steam.
• The food must be stirred or rotated midway through the heating cycle.
• The food must stand covered for at least 2 minutes after heating to allow temperatures to equalize through conduction.
• All parts of the food must reach a minimum of 74°C (165°F).

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5. Daily Reheating & Hot Holding Log Template

Kitchen staff must document every reheating event to prove regulatory compliance and verify that critical control points are met. Below is a copyable daily log template for commercial food premises.

Daily Reheating & Hot Holding Log

Date: \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ Supervisor Signature: \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

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6. Public Health Inspector Review Points (What They Look For)

During a routine public health inspection, a Public Health Inspector (PHI) or Environmental Health Officer (EHO) will specifically audit your reheating and hot holding workflows. Be prepared for the following inspection focus areas:

1. Thermometer Accuracy and Calibration: Inspectors will check if your kitchen has an accurate, digital probe thermometer that is easily accessible. They may ask your staff to demonstrate thermometer calibration using the Ice-Point Method (submerging the probe in a 50/50 ice water slush to verify it reads 0°C / 32°F within a tolerance of ±1°C).
2. Active Temperature Verification: The inspector will observe whether food handlers wash and sanitize the probe before inserting it into the thickest, geometric centre of the food. For liquids like soups or sauces, they will check if the food was stirred thoroughly before the temperature was taken.
3. Review of Temperature Records: A key focus is looking for gaps in daily logs or evidence of "pencil-whipping" (retroactively filling out identical temperatures). Logs must be kept on file for at least 30 to 90 days depending on local provincial mandates.
4. Equipment Evaluation: Inspectors will examine whether your hot-holding equipment is clean, in good repair, and fitted with an easily readable external thermometer. They will verify that no cold food is being reheated directly within steam tables or soup kettles.

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7. Common Food Safety Failures and Corrective Actions

When critical limits are breached, immediate and documented corrective actions must be taken to prevent contaminated food from reaching consumers.

Failure 1: Food Fails to Reach 74°C (165°F) within 2 Hours

• The Cause: Reheating too much food at once in an overloaded oven, or attempting to reheat thick food in deep, tightly packed containers.
• Immediate Corrective Action: Discard the food immediately. The food has spent too much time in the Temperature Danger Zone, allowing vegetative cells to multiply and potentially produce heat-stable toxins. Do not attempt to cook it longer or run it through another reheat cycle.
• Preventative Action: Reheat food in smaller batches. Stir liquids frequently, and utilize shallow stainless steel pans to facilitate rapid heat transfer.

Failure 2: Hot Holding Food Drops Below 60°C (140°F)

• The Cause: Steam table wells running dry, thermostatic controls failing, or cold food being added to hot-holding units.
• Immediate Corrective Action: Use a calibrated thermometer to check the internal temperature.
• *If the temperature has been below 60°C for less than 2 hours:* Move the food back to a commercial range or oven and rapidly reheat it to 74°C (165°F) for 15 seconds (this rapid reheat can only be done once). Pre-heat the hot-holding unit, check that the water wells are filled with hot water, and return the food to the unit.
• *If the temperature has been below 60°C for more than 2 hours, or if the time cannot be verified:* Discard the food immediately.
• Preventative Action: Require staff to monitor and log hot-holding temperatures every 2 hours, allowing corrective action to be taken before the 2-hour threshold is crossed.

Failure 3: Reheating Food in a Warm-Holding Unit

• The Cause: Kitchen staff attempting to reheat chilled chili or soup by placing the cold insert directly into a steam table or soup warmer.
• Immediate Corrective Action: Immediately stop the process. Measure the internal temperature of the food. If it has been in the unit for less than 2 hours, transfer it immediately to a stove-top range or convection oven and rapidly heat it to 74°C (165°F). Verify that the hot-holding unit is fully pre-heated before returning the hot food to the well. Retrain the responsible staff member.
• Preventative Action: Clearly label holding equipment with "Holding Only - No Reheating" signs. Establish standard operating procedures (SOPs) that mandate pre-heating all hot-holding wells before placing hot food inside them.

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Operational Excellence with Food Ops

Maintaining compliance across multiple locations with varying provincial standards requires consistency, real-time visibility, and verifiable proof of action.

The Food Ops platform helps restaurant operators eliminate paper-based logs, prevent "pencil-whipping," and build a high-performing food safety culture. With Food Ops, you can standardise your daily temperature checks, automate your receiving logs, and ensure your pest control checklists are executed on time, with photographic evidence and digital timestamps.

To see how Food Ops can streamline your kitchen's reheating and hot holding logs, review our related guides:

• [Safe Food for Canadians Regulations Guide for Restaurants](/resources/canada-safe-food-for-canadians-guide/)
• [Food Temperature Log Template](/resources/food-temperature-log-template/)
• [FDA Food Code: Safe Restaurant Reheating Guide](/resources/usa-restaurant-reheating-food-guide/)
• [Kitchen Cleaning Schedule Template](/resources/kitchen-cleaning-schedule/)

Explore the Food Ops interactive demo to standardise your kitchen workflows today.

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Official sources

• Government of Canada - Food Retail and Foodservices Code
• Government of Ontario - Food Premises Regulation (O. Reg. 493/17)
• Government of British Columbia - Food Premises Regulation (B.C. Reg. 210/99)
• Government of Alberta - Food Regulation (Alta Reg 31/2006)
• Government of Saskatchewan - The Food Safety Regulations (P-37.1 Reg 12)