Cook-Chill Food Safety Guide

Cook-chill is a controlled way to cook food in advance, chill it rapidly, store it cold and reheat it later for service — and it is the backbone of catering, aged care and multi-site food operations. Done properly it is very safe; done badly it is a reliable way to give people food poisoning. The essentials are straightforward: cook thoroughly, chill rapidly through the danger zone, store at or below 5°C with clear date-marking, reheat once to a core of 75°C, and monitor and record every step. What the cook-chill cycle looks like Cook-chill separates production from service, which is what makes it so useful for kitchens feeding large numbers or several sites. Each stage has a specific safety job to do. Cook — heat food to a safe core temperature (75°C is the standard benchmark) Rapidly chill — cool it quickly through the danger zone using the two-stage rule Store cold — hold at or below 5°C, date-marked, until needed Reheat — bring back to a core of 75°C, once only Serve or hot-hold — keep hot food at or above 60°C Rapid cooling is the critical step The stage most likely to go wrong is chilling. Food must not linger in the danger zone (5°C to 60°C), so the two-stage benchmark applies: cool from 60°C to 21°C within two hours, then from 21°C to 5°C within a further four hours. Blast chillers are the most reliable tool for this; where you do not have one, use shallow containers, portion large items, and stand food in ice baths. A standard fridge is designed to keep cold food cold, not to chill hot food quickly, so do not rely on it for the initial cool-down of bulk batches. Stage Target Time limit Cook 75°C core Until reached Chill stage 1 60°C to 21°C 2 hours Chill stage 2 21°C to 5°C 4 hours Cold storage 5°C or below Within shelf life Reheat 75°C core Rapidly, once only Cold storage, shelf life and date-marking Once chilled, food must be held at or below 5°C and used within a defined shelf life. Clear date-marking is essential so that stock is used in order and nothing is served past its safe life. Label each batch with what it is and the date it must be used by, and rotate stock on a first-in, first-out basis. Our free food safety plan generator helps you define shelf-life rules for your menu, and digital waste and expiry tracking makes it easy to see what needs using and what must be discarded. Reheat once, and reheat properly Reheating must be rapid and reach a core temperature of 75°C to reduce any bacteria that grew during storage. Just as importantly, cook-chill food should be reheated only once — repeatedly cooling and reheating gives bacteria multiple chances to multiply and increases the risk of toxins that reheating cannot destroy. Portion at the chilling or storage stage so you only ever reheat what you need for a service. Monitor and record every stage Cook-chill is a documented process by nature. You should be recording cook temperatures, chilling times and temperatures, cold-storage checks, and reheat temperatures — and defining what happens when any of these fall outside limits. This is precisely the kind of evidence Standards 3.2.2 and 3.2.2A expect, and it is what an inspector will want to see. Log cook, chill, storage and reheat temperatures Record corrective actions when a target is missed Keep records organised and easy to retrieve at audit Digital temperature monitoring turns these checks into a few taps for your team, corrective actions capture what was done when something went wrong, and our cooling time calculator helps you confirm a batch is chilling on schedule. Why cook-chill suits caterers and multi-site venues Because production is separated from service, cook-chill lets a central kitchen prepare consistent food for many meals, sites or clients, then reheat on demand. That is a natural fit for caterers, aged care, hospitals and hospitality groups — but it only works safely if the temperature discipline and records are watertight across every site. For the underlying national requirements, review the Food Standards Australia New Zealand website , and confirm state and territory specifics with your local council or regulator, since requirements and enforcement vary. Ready to run a tight, auditable cook-chill operation? Start your free FoodSafety HQ account and put your whole cook-chill cycle on the record.