Cook-chill Cook chill is a catering system based on the full cooking of food followed by fast chilling and storage in controlled low temperature conditions just above the freezing point(0°C to 3ocy with subsequent thorough re-heating close to the consumer before consumption. In order to preserve the appearance, texture, flavour, nutritional quality, and safety of the cooked food, blast chilling should commence as soon as possible after completion of cooking(and portioning if done after cooking) and in any event within 30 minutes of leaving the cooker In order to achieve the recommended chilling process, the chiller used should have a performance specification showing its capable of reducing the temperature of a 50-mm layer of food from 70C to 7oC or below in a period not exceeding 90 minutes when fully loaded.