How are copper tube IQF coils cleaned and maintained?

Copper tube IQF (Individually Quick Frozen) evaporator coils are cleaned and maintained to ensure hygiene, heat transfer efficiency, and long service life. Best practices include:

Routine Cleaning

• Dry cleaning: Use soft brushes or compressed air to remove frost, dust, and loose debris.

• Wet cleaning: Rinse with warm water and approved food-grade, non-corrosive detergents.

• Foam cleaning: Apply alkaline or neutral foam cleaners for grease and protein buildup; rinse thoroughly.

• Disinfection: Use sanitizers approved for food-processing environments.

Defrost & Frost Control

• Perform air, water, or electric defrost as designed for the IQF system.

• Avoid excessive defrost temperatures to protect copper tubes and fins.

Inspection & Preventive Maintenance

• Check for frost bridging, fin damage, and airflow blockage.

• Inspect for refrigerant leaks at tube joints and headers.

• Ensure fans, drains, and defrost systems operate correctly.

Corrosion Protection

• Use neutral-pH cleaners only; avoid chlorine and acidic chemicals.

• Apply protective coatings if operating in high-humidity or salt-rich environments.

Maintenance Frequency

• Light cleaning: weekly

• Deep cleaning and inspection: monthly or quarterly, depending on product load and hygiene requirements

Proper, regular cleaning maintains freezing performance, reduces energy consumption, and ensures food safety compliance.