Case Studies
Coolroom
CS007 · Food Service · Commercial Kitchen
Case Study — CS007
Coolroom (Food Safety)
Client: Commercial Kitchen | Sector: Food Service
Situation
A commercial kitchen serves breakfast, lunch and dinner to approximately 400 people every day. Two coolrooms are used to defrost food prior to food preparation. The food is stacked onto trays and carry shelves, covered in plastic to contain moisture from evaporation.
The coolrooms required cleaning on a fortnightly basis, as the walls and ceilings would be covered in mould. This cleaning regime had been conducted for a number of years. The facility manager contacted their air conditioning service team about finding a solution, in order to save the costly labour and downtime (more than $10,000 per year).
Treatment
One coolroom was used as a control with no SAN-AIR treatment. In the other coolroom, SAN-AIR was introduced and replaced every month. The test method involved contact dip slides with a develop count at 28°C. Samples were taken from coil fins and the wall opposite the fans.
Test Methodology
- 01Step 1: Surface cleaning — both rooms cleaned to equal baseline using SAN-AIR coil cleaner
- 02Step 2: Air Handler Sanitisation — SAN-AIR 50g and 250g Gel packs installed in coolroom B air handling units only
- 03Step 3: Mould Measurement — monthly monitoring of mould and bacteria counts on surfaces for 6 months
- 04One coolroom served as untreated control for comparison
Result
- In 2 weeks, SAN-AIR reduced mould counts in the treated coolroom
- Over 6 months, SAN-AIR maintained reduced counts continuously
- Better than 90% mould reduction compared to the untreated control coolroom
- Control coolroom counts remained high throughout the study
Conclusion
The circulating air in a coolroom can be significantly treated for bio-burden contamination by using SAN-AIR.
