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Trial Number 4

Client Number 153

Project Number 13

Trial Purpose:

Redo Benchmark Testing of BevSafe cleaner: unheated ultrasonics with rinse step

Date Run:

02/27/2024

Experiment Procedure:

Three pre weighed coupons of both stainless steel and aluminum were used per soil for two cleaners for a total of 12 coupons.  Half of the coupons were soiled with tea and tea leaves with a swab.  The other half were soiled with coffee and coffee grounds with a swab.  The coupons were then baked in the oven or 40 minutes at a temperature of 200 F to adhere the soils to the coupons and to initiate staining.  The dirty weights of the coupons were then recorded. The coupons were then subjected to 20 minutes of unheated immersion with BevSafe Line and Tank Cleaner at a dilution of 4.5%.  After removing the coupons from the cleaner, they were rinsed in a beaker of clean DI water.   The coupons were allowed to dry overnight before clean weights were recorded.  

Trial Results:

Substrate Soil Initial wt of cont. Final wt of cont. %Cont Removed % AVG % Overall
Stainless Steel  Pigeon Cove Tea Leaves 0.0998 0.0001 99.90 99.57 94.62
0.1474 0.0002 99.86
0.0749 0.0008 98.93
Coffee 0.0208 0.0005 97.60 89.67
0.0042 0.0006 85.71
0.0042 0.0006 85.71
Aluminum Pigeon Cove Tea Leaves 0.0420 -0.0413 198.33 180.09 180.09
0.0864 -0.0446 151.62
0.0454 -0.0410 190.31
Coffee 0.0042 NA NA NA
0.4496 NA NA
0.0051 NA NA

The aluminum coupons soiled with coffee were not tested after it became apparent that the product would strip the substrate.  

Success Rating:

Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.

Conclusion:

BevSafe Line and Tank Cleaner 4.5% is much more effective utilizing unheated immersion when a rinse step is added post cleaning.

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