How long does a commercial kitchen deep clean take?

A typical medium-sized commercial kitchen (20-50 m²) takes 6-10 hours of labour for a thorough deep clean. With 2-3 staff working together, you can expect to finish in 3-5 hours. Larger kitchens with more equipment take proportionally longer.

What is included in a kitchen deep clean?

A full deep clean includes: degreasing all equipment surfaces, deep cleaning ovens and fryers, cleaning extraction hoods and filters, sanitising all food contact surfaces, cleaning behind and under equipment, scrubbing walls and floors, descaling taps and sinks, and cleaning fridges and freezers inside and out.

How often should a commercial kitchen be deep cleaned?

UK food hygiene regulations recommend a full deep clean every 1-3 months depending on the type of food operation. Fast food outlets and high-volume kitchens may need monthly deep cleans. Lower-risk operations may manage with quarterly deep cleans, supplemented by regular daily cleaning.

Do I need specialist chemicals for kitchen deep cleaning?

Yes, use food-safe degreasers for equipment and surfaces, oven cleaning chemicals rated for commercial use, and BS EN 1276 or BS EN 13697 tested sanitisers for food contact surfaces. Never use domestic cleaning products in a commercial kitchen as they may not meet food safety standards.

CleanCalcs

Deep Clean Time Calculator

Estimate total time for a commercial kitchen deep clean by area and equipment.

Kitchen Size

Number of Staff

Staff working on deep clean

Ovens

Fryers

Extraction Hoods

Fridges / Freezers

How We Calculate This

How the calculation works

This calculator adds up time estimates for each area and piece of equipment in the kitchen.

Base times by kitchen size

Small (under 20 m²): 3 hours base
Medium (20-50 m²): 6 hours base
Large (50-100 m²): 10 hours base
Extra large (100+ m²): 15 hours base

Equipment time additions

Oven: 45 mins each
Fryer: 30 mins each
Extraction hood: 60 mins each
Fridge/freezer: 25 mins each

Finish time = total labour minutes ÷ number of staff

Frequently Asked Questions

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Last updated: February 2026

All calculations are estimates. Always verify quantities and timings for your specific situation.