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What Happens During a Commercial Kitchen Deep Clean?
A step-by-step look at what's involved in a professional commercial kitchen deep clean, and why it matters for compliance and hygiene.
Bright Hygiene • 4 min read
More Than Just a Big Clean
A commercial kitchen deep clean is not the same as a thorough daily clean done more carefully. It's a systematic, specialist process that reaches areas daily cleaning can't, removes built-up grease and carbon deposits, and restores equipment and surfaces to a hygienic, inspection-ready standard.
Deep cleans are typically carried out quarterly, bi-annually, or annually depending on the kitchen's output, but some high-volume operations require monthly deep cleans to maintain compliance.
Step 1: Pre-Clean Assessment
Before any work begins, the cleaning team surveys the kitchen to assess the scope. This includes identifying heavily soiled areas, checking equipment that needs special handling, and confirming access requirements and any areas that are out of scope.
This assessment ensures nothing is missed and that the team brings the right equipment and products for the job.
Step 2: Equipment Preparation
All equipment is switched off, cooled down, and made safe. Removable parts like oven racks, fryer baskets, grill plates, and shelf units are taken apart for individual cleaning.
Electrical components and sensitive areas are protected before any wet cleaning begins.
Step 3: Degreasing and Deep Cleaning
Professional-grade degreasing agents are applied to all surfaces, including areas behind and underneath equipment that are inaccessible during daily cleaning. This includes the inside of ovens and grills, extraction canopy and filters, wall tiles, floor surfaces and drains, storage shelving and racking, and cold room interiors.
The team works methodically from top to bottom, ensuring grease and grime are removed completely rather than just redistributed.
Step 4: Rinse, Sanitise, and Reassemble
After degreasing, all surfaces are rinsed thoroughly and sanitised with food-safe antibacterial products. Equipment is reassembled, checked for correct operation, and returned to its proper position.
Floors are given a final clean and the entire kitchen is checked against a quality checklist before handover.
Step 5: Documentation and Handover
A professional deep clean should come with documentation. At Bright, we provide a completion certificate and any observations or recommendations for maintenance issues spotted during the clean.
This documentation is important for EHO inspections, insurance compliance, and your own records. It demonstrates that your kitchen is being maintained to the standard expected of a professional catering operation.
