"Category 1" means a food establishment that presents a high relative risk of causing food-borne illness, based on the large number of food handling operations typically implicated in food-borne outbreaks and the type of population served by the facility, or both. Category I facilities include those where the following operations occur:
- Potentially hazardous* foods are cooled, as part of the food handling operation at the facility.
- Potentially hazardous* foods are prepared hot or cold and held hot or cold for more than 12 hours before serving.
- Potentially hazardous* cooked and cooled foods must be reheated.
- Complex preparation of foods or extensive handling of raw ingredients with hand contact for ready-to-eat foods occurs as part of the food handling operations at the facility.
- Vacuum packaging, other forms of reduced oxygen packaging, or other special processes that require a HACCP plan; or
- Immunocompromised individuals such as the elderly, young children under age four and pregnant women are serves, where these individuals compose the majority of the consuming population.
* Potentially hazardous foods are now referred to as time-temperature control for safety (or TCS) foods.