How should hot holding equipment be maintained and cleaned?

Date modified: 1st June 2025 | This FAQ page has been written by Pilla Founder, Liam Jones, click to email Liam directly, he reads every email. Or book a demo to see how hospitality businesses use Pilla to manage food safety.
Hospitality industry guidance and best practices

To keep your hot holding equipment in top condition and ensure food safety, regular maintenance and cleaning are essential. After each use, turn off the unit, allow it to cool, and then clean it thoroughly to remove food particles and grease. Use a mild detergent and warm water for cleaning, and make sure to dry the unit completely to prevent rust and corrosion.

Common misunderstanding: It’s enough to just wipe down the surfaces of hot holding equipment.

Simply wiping down surfaces might remove visible dirt, but it doesn’t effectively sanitize the equipment. It’s important to use appropriate cleaning agents and methods to eliminate bacteria and ensure the unit is safe for food storage.

Common misunderstanding: Hot holding equipment doesn’t require regular deep cleaning if it looks clean.

Even if the equipment looks clean, oils and unseen food particles can accumulate and lead to bacterial growth or affect the unit’s performance. Regular deep cleaning is necessary to maintain both safety and functionality.

Why must the hot holding unit be emptied and cleaned between service periods?

Emptying and cleaning hot holding units between service periods prevents cross-contamination and bacterial growth. When food is left in the unit too long, it can create a breeding ground for bacteria, which can contaminate new food added to the unit. Cleaning ensures that each batch of food is stored under hygienic conditions.

Common misunderstanding: If the temperature is maintained, bacteria won’t grow, so frequent cleaning isn’t necessary.

Even with correct temperature control, bacteria can still grow on food residues left in the unit. Maintaining temperature is crucial, but it must be combined with regular cleaning to ensure food safety.

Common misunderstanding: Cleaning once a day is enough for hot holding units.

Cleaning just once a day might not be sufficient, especially in high-use environments. It’s important to clean the unit between service periods to prevent the build-up of bacteria and ensure that each service starts with a clean and safe setup.

What should staff do before placing new food into a hot holding unit?

Before placing new food into a hot holding unit, staff should ensure that the unit is clean and has reached the required holding temperature. This prevents bacterial growth and helps maintain food at safe temperatures. Additionally, check that the unit is functioning properly and that there are no signs of wear or malfunction.

Common misunderstanding: It’s okay to load food into the unit while it’s still reaching the required temperature.

Loading food before the unit reaches the correct temperature can lead to rapid bacterial growth and food spoilage. Always preheat the unit to the required temperature before adding food.

Common misunderstanding: Any cleaning agent can be used on hot holding equipment.

Using the wrong cleaning agents can damage the equipment or leave harmful residues. Always use cleaning products recommended by the manufacturer or suitable for food service equipment.

UK Official Guidance

USA Official Guidance