Before cleaning starts, ensure that no traffic passes through the hatcher area, to avoid cross-contamination. Preferably, a whole hatcher room should be emptied and cleaned at one time.

Remove dry fluff by vacuuming or wet cleaning. Avoid sweeping. Take out any removable equipment. Follow the same washing procedure for this equipment as for the rest of the hatcher.

Completely wet the inside of the hatcher. Remove the damped, gross soils, fluff, etc. by scraping or sweeping. Dispose the debris.
- do not forget the cooling coils
- do not forget the back of the fan blades
- do not forget the inside of the exhaust pipes

Wash down the entire hatcher with high pressure. Soak the hatcher and equipment completely for a minimum 15 minutes with a chlorinated foam (take care of pH compatibility with other cleaning products). After soaking, wash down the hatcher or scrub with a brush. Do not forget the top of the hatcher.

Make a visual inspection of the result of the cleaning. Pay special attention to areas out of direct eyesight like:
- back of fan blades
- drums of fans, fan belts
- inside of inlets and exhausts
- inside of the door rubbers
- top of the hatchers
- etc.

If necessary, apply additional cleaning and rinse again. Squeegee and remove excess water.

Allow the machine to dry, eventually with the cleaned hatcher trays and lorries inside. Make sure the machine is ventilating while drying. Disinfect the machine and the hatcher trays and lorries with a properly labeled disinfectant.

Check the result routinely by microbiological monitoring. Take swabs from walls, corners, fan belts, etc. Several agar plates can be used, for instance blood agar plates for non-selective bacterial count and Sabouraud Dextrose agar for fungus.

Allow the hatcher and hatcher baskets to dry completely before transfer.