Cleaning Your Walk in Chiller & Freezer Room

Why it’s important to keep  your walk in Chiller/Freezer Room clean

1. Food safety & hygiene

• Reduces risk of bacterial growth, mould, and cross-contamination.
• Keeps your business compliant with NZ Food Safety Act and MPI guidelines.

2. Better temperature performance

• Dirt, spills, and ice build-up can stop air from circulating properly.
• A clean unit reaches set temperatures faster and stays more stable.

3. Longer equipment life

• Build-ups put strain on fans, evaporator coils, and seals.
• Regular cleaning reduces breakdowns and costly repairs.

4. Energy efficiency

• Clean coils, clear floors, and good airflow make the system run more efficiently.
• Less power consumption = lower operating costs.

Best way to clean a walk-in chiller or freezer

Daily or Regular Wipe-down

• Wipe spills immediately to prevent bacterial growth and odours.
• Clean shelving with warm soapy water (non-abrasive).

Weekly Cleaning

• Remove food stock so you can access all surfaces.
• Use food-safe cleaners or mild detergent — avoid bleach fumes in enclosed spaces.
• Wipe walls, doors, handles, shelving, and floors.
• Check door seals for grime; wipe gently to avoid damaging the gasket.

Monthly / Deep Cleaning

• Switch off unit temporarily if needed for safety.
• Clean evaporator fan guards (don’t touch electrical components).
• Remove ice build-up in freezers — never use sharp tools.
• Sweep and mop the floor with a non-slip, food-safe disinfectant.
• Clean drains and check for blockages that cause puddles or mould.

Coil Cleaning (1–2 times per year)

• Have a refrigeration technician clean the evaporator and condenser coils.
• These require correct chemicals and procedures to avoid damage.

Extra Tips

• Keep a cleaning schedule for staff to follow (daily/weekly/monthly tasks).
• Always store items off the floor for easier cleaning and proper airflow.
• Keep cartons and boxes dry — wet cardboard grows mould quickly.
• Dispose of expired or damaged product routinely.