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Cook chill is a production method where food is fully cooked, cooled quickly and held refrigerated until it is reheated or served, which makes the cooling step the critical control point. The FDA Food Code two-stage limit is 135°F to 70°F within 2 hours, then to 41°F or below within 4 more hours, for a total of 6 hours.
This guide covers the cooling limits, how cook-chill differs from cook-freeze, what a CCP table and monitoring log look like, and what a food safety objective is. It builds on our guides to critical control points and the temperature danger zone.
Cook-Chill vs Cook-Freeze
| Factor | Cook-chill | Cook-freeze |
|---|---|---|
| Process | Cook, cool rapidly, store refrigerated, reheat | Cook, cool rapidly, freeze, store frozen, thaw and reheat |
| Storage | Refrigerated, at 41°F or below | Frozen, at the temperature set in your plan |
| Shelf life | Shorter; set by a validated shelf-life study | Longer |
| Main control | Cooling speed and cold-chain control | Cooling speed, freezing and thawing control |
Both methods depend on getting food through the middle of the temperature range quickly, because that is where bacteria that survive cooking, especially spore-formers, can grow.
Cook-Chill Cooling Limits From the FDA Food Code
The FDA Food Code is model guidance for retail and food service that states adopt into their own rules. Its two-stage cooling requirement, as summarized by the Texas Department of State Health Services, is: cool from 135°F to 70°F within 2 hours, then from 70°F to 41°F or colder within an additional 4 hours, never exceeding 6 hours in total. If the food is made from ingredients at ambient temperature, you have 4 hours to cool it to 41°F.
A manufacturer under 21 CFR Part 117 sets its own critical limits in its food safety plan and has to be able to show they are scientifically supported. Many plants use the Food Code limits as a starting point or a minimum and tighten them for their product. If your process differs, validate it.
CCP and Critical Limits for Cook-Chill
| Control point | Hazard | Example critical limit | Monitoring | Corrective action |
|---|---|---|---|---|
| Cooling stage 1 | Growth of surviving spore-formers | 135°F to 70°F within 2 hours | Core temperature and time at start and at 2 hours | Speed up cooling, then evaluate or discard per plan |
| Cooling stage 2 | Continued growth while cooling | 70°F to 41°F within 4 more hours | Core temperature and time at 6 hours | Evaluate the batch; discard if the limit was missed and the plan does not allow another action |
| Cold storage hold | Growth during storage | 41°F or below | Cooler temperature record, product check at transfer | Move product, check history, hold for evaluation |
These are examples. Your plan, your hazard analysis and your validation decide the actual limits and what you do when one is missed. Do not apply a corrective action that your plan does not describe.
How to Cool Food Fast Enough
- Divide product into shallow pans or smaller portions so heat leaves faster.
- Use a blast chiller, ice bath or ice wand, and stir where the product allows.
- Do not stack pans or cover tightly until cold, so cold air can circulate.
- Measure the core of the thickest batch, not the surface.
- Record the actual start and finish times, not the planned ones.
Cooling Monitoring Log Example
| Batch/lot | Product | Start (time, °F) | 2-hour check (°F) | 6-hour check (°F) | Pass/fail | Action and initials |
|---|---|---|---|---|---|---|
| CC-1014-01 | Beef stew | 09:00, 135 | 11:00, 68 | 15:00, 40 | Pass | None, JS |
| CC-1014-02 | Rice pilaf | 09:30, 135 | 11:30, 74 | — | Fail at stage 1 | Re-portion, hold for QA, AK |
Records must be accurate, legible and made at the time of the activity, and show actual values and the initials of the person who took them, as 21 CFR 117.305 describes. See our guide to food safety documentation and recordkeeping.
Food Safety Objectives (FSO) in Plain Terms
A food safety objective is a target stating the maximum frequency or concentration of a hazard in a food that is acceptable at the point of consumption. As an ICMSF article explains, FSOs are set by risk managers and used to design and validate processes; they can inform microbiological criteria but criteria cannot be used to set an FSO (ICMSF). For a cook-chill plant, the practical link is that your cooling and chill limits are the process controls that deliver the objective, so the validation should show they keep the hazard below it.
Recording Cooling Checks Without Paper Gaps
The weak point in cook-chill is the second reading, which is easy to forget at hour six. In IONI, monitoring checks can be scheduled and triggered at batch close, completed on the floor with a pass or fail, and a failure can open a deviation with a corrective action. The log keeps who recorded it and who reviewed it. IONI does not read your chiller probes automatically, so temperatures are entered by the operator.
FAQ
What is cook chill?
A method where food is cooked, cooled rapidly and stored refrigerated until reheated. Cooling speed is the key control.
What are the cooling times for cooked food?
The FDA Food Code limit is 135°F to 70°F within 2 hours, then to 41°F or colder within 4 more hours, 6 hours in total.
Is cooling a CCP?
For cook-chill products it usually is, because cooling is the step that controls growth of spore-forming bacteria that survive cooking. Your hazard analysis confirms it.
What is the difference between cook-chill and cook-freeze?
Cook-chill stores food refrigerated for a short shelf life. Cook-freeze freezes it for longer storage. Both need fast cooling first.
What is a food safety objective?
The maximum frequency or concentration of a hazard acceptable in a food at consumption, used to design and validate process controls.
Last updated: October 14, 2026
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