# What Actually Happens Inside a Chicken Processing Facility in Ontario
Most people have no idea what happens between a live chicken and a shrink-wrapped tray of breasts at the grocery store. That's fair. It's not something the industry talks about much — and when it does, it's usually in regulatory language that puts everyone to sleep.
But if you're considering a career in this field, or you're just genuinely curious about where your food comes from, you should understand the process. It's more precise, more regulated, and more technically demanding than you'd expect.
We've been doing this at Cheong Hing in Scarborough for over 30 years. Here's what the work actually looks like — start to finish.
The Stages of Chicken Processing — From Receiving to Boxed Product
A chicken processing facility runs in a strict sequence. Every stage feeds the next. Skip one, and the line stops. Here's how it breaks down.
Receiving and holding. Live birds arrive by transport truck — typically from farms within a few hours' drive. They're held in a ventilated holding area that's physically separated from the stunning and bleeding zones by walls, distance, or controlled airflow. Ventilation matters here. Poor airflow means dead-on-arrival birds, which is a regulatory problem and an economic one.
Ante-mortem inspection. Before anything else, a CFIA inspector visually examines a sample of the incoming flock — usually 5 to 10% of each shipment. The recommended sample is 290 birds per 5,000-bird load, which gives you 95% confidence of detecting a 1% disease prevalence. Inspectors are looking for anything off: abnormal behaviour, signs of illness, physical injuries. This has to happen within 24 hours before slaughter. No exceptions.
Stunning. Birds are rendered unconscious, typically by electrical water bath. The bird is immersed up to its shoulders in electrified water, with a ground electrode on the shackle completing the circuit. Done correctly, this triggers an immediate seizure. The entire point is to ensure the bird is unconscious before the next step.
Slaughter and bleeding. A throat cut severs the jugular veins and carotid arteries — either by hand or by mechanical rotary knife. Then the bird bleeds out on the line. Minimum bleed time is 90 seconds. That number is non-negotiable. And the facility must ensure no conscious bird enters the scald tank. That's a hard regulatory line.
Scalding. Carcasses pass through hot water to loosen the feathers. Two methods: soft scald at 50 to 55 degrees Celsius for about 120 seconds (this preserves the yellow skin colour), or hard scald at 60 to 64 degrees for 45 to 110 seconds (which strips the yellow pellicle and produces white skin). The method depends on what the end customer wants.
Defeathering. Mechanical machines with rotating rubber finger-like projections strip the loosened feathers from the carcass. The engineering here is surprisingly specific — the rubber fingers need to pull feathers without tearing skin. After defeathering, heads and feet are removed.
Evisceration. This is the most inspection-intensive step. Internal organs are removed — either by hand with knives or by automated equipment. The preen gland comes off the tail, the vent is opened, and the viscera are extracted. A CFIA inspector must maintain a permanent presence in the evisceration area throughout the entire operation. That's not a periodic check. It's continuous.
Post-mortem inspection. Every single carcass gets examined. The licence holder conducts the initial post-mortem examination under the supervision of a CFIA veterinary inspector, who has final disposition authority. Carcass, parts, and viscera are all checked for disease, contamination, and defects. Under the Modernized Poultry Inspection Program (MPIP), the licence holder sorts defective carcasses based on specified criteria — but the vet inspector makes the final call. The dedicated inspection space is a minimum of 1,200 millimetres in length.
Washing. Carcasses go through a thorough wash with potable water to remove any residual contaminants and loose tissue.
Chilling. This is where temperature control gets critical. Carcasses must be rapidly cooled to 4 degrees Celsius or below. The most common method in Canada is water immersion, though air chilling, combination chilling, and ice are also used. The internal temperature has to reach 4 degrees as quickly as possible — industry standard is within one to two hours, bringing the bird down from about 40 degrees. Surface temperature must be 7 degrees or below before the product can ship.
Cutting and portioning. Whole carcasses are broken down into parts — breasts, thighs, wings, drumsticks — or kept whole, depending on the order. This happens in temperature-controlled rooms.
Packaging and labelling. Product is packaged, weighed, and labelled according to SFCR and CFIA requirements. Every package needs an establishment number, product name, weight, best-before date, and storage instructions. Bilingual labelling. Allergen declarations where applicable.
Cold storage and shipping. Finished product sits at 4 degrees or below for refrigerated, or minus 18 for frozen. Cold chain from this point forward — through distribution, onto the truck, into the store cooler. The chain doesn't break. If it does, the product doesn't ship.
What CFIA Inspectors Are Looking For on the Floor
The Canadian Food Inspection Agency doesn't inspect after the fact. They're embedded in the operation.
At receiving, inspectors examine 5 to 10% of incoming birds for signs of disease, injury, or abnormal physiology. During slaughter, they verify that stunning is effective, bleed time hits the 90-second minimum, and no conscious bird enters the scald tank. Through evisceration and post-mortem, a CFIA veterinarian or supervised inspector is physically present — watching every carcass.
Line speed is controlled too. The maximum speed is only permitted under optimal conditions — good carcass presentation, average disease incidence, effective process control. If conditions deteriorate, the supervising veterinarian can and will impose line speed reductions. That's not a suggestion. It's an order.
CFIA maintains a permanent presence in the carcass dressing and evisceration area and has full access to salvaging and reprocessing operations. The agency employs over 6,000 people nationally — inspectors, veterinarians, and scientists — as of 2024-25. The number assigned to any given plant depends on species processed, line speed, volume, and plant complexity.
For a deeper look at the regulatory framework, including HACCP requirements and CFIA inspection requirements, we cover that in a separate article.
The Paperwork Behind the Product
Processing chicken isn't just a physical operation. It's a documentation operation.
Under the Safe Food for Canadians Regulations (SFCR), which came into force on January 15, 2019, every federally licensed poultry processor must prepare, maintain, and implement a written Preventive Control Plan. The PCP is the backbone of your compliance. It covers:
- Hazard analysis — identifying every biological, chemical, and physical hazard that could reasonably contaminate the product
- Critical control points — the specific steps where control is essential to prevent or eliminate those hazards
- Critical limits — measurable thresholds for each CCP (minimum temperatures, maximum chill times, that kind of thing)
- Monitoring procedures — how often you check, and how
- Corrective action procedures — documented steps for when limits aren't met
- Verification procedures — activities that confirm the whole system is actually working
- Record-keeping — documentation of every monitoring event, every corrective action, every verification
- Sanitation program, pest control, traceability, recall procedures, employee competence standards, and an animal welfare plan
The traceability piece is worth highlighting. Processors must maintain "one step back, one step forward" — meaning you can trace every lot of product back to the supplier and forward to the customer. If there's ever a recall, you can identify exactly which product went where.
Provincially inspected plants in Ontario operate under OMAFRA's Meat Inspection Program and can only sell within the province. Federally registered plants — which is what you need for interprovincial or international trade — operate under the Meat Inspection Act and the full SFCR framework.
How a Facility Like Ours Keeps Up After 30 Years
The regulations get tighter over time. They never get looser. That's actually a good thing.
When Cheong Hing started processing chicken in Scarborough three decades ago, the compliance landscape looked different. The SFCR didn't exist yet. HACCP was still being adopted across the industry. The Modernized Poultry Inspection Program came later.
What hasn't changed is the standard we hold ourselves to. We train every person who walks onto our floor — not because the regulation says we have to (it does), but because a mistake on the line can shut down the entire operation. One contamination event, one temperature excursion that doesn't get caught and corrected — that can mean a recall, lost product, and lost trust. Temperature logs, sanitation records, corrective action documentation — it's daily work. Not annual audits. Daily.
The thing about running a processing facility for 30 years is that you build institutional knowledge that doesn't exist in a manual. Which suppliers are reliable in January when roads are bad. How to adjust your chill times when humidity spikes in August. When to slow the line down before an inspector has to tell you. How a slight change in bird size from a new flock affects your portioning yields. That kind of knowledge takes years to develop, and it's the reason experienced operators stay in business while others turn over.
If you're looking at this industry from the outside, know this: the work is real, the standards are high, and the demand isn't going anywhere. Canadians eat 35 kilograms of chicken per person per year. That number has gone up almost every year for two decades. Someone has to process it — and doing it well is a genuine skill.