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Trial Number 2

Trial Purpose:

To test the efficacy of safer alternatives within the cleaning process for the Kettles.

Date Run:

11/21/2025

Experiment Procedure:

Three stainless steel coupons were assigned to each cleaner being tested.  The coupons had their initial weights recorded.  The coupons were then soiled with Kettle liquid by spreading 2ml of the liquid on the bottom third of each coupon using a pipette.  The coupons were then baked in the oven for 1 hours at 212F  After the first hour, the oven was turned off while the coupons remained inside while the temperature decreased over the course of another hour. This was to simulate the maximum temperature reached during the 2 hour kettle process.  After the coupons were removed from the oven, they were weighed again and had their dirty weights recorded.  The coupons were then subjected to 20 mins of immersion in their respective cleaners with a stir bar set to 1,000 rpm to simulate agitation caused by CIP balls within the process.  After cleaning, each coupon was rinsed under a stream of tap water for 10 seconds to remove any potential residue from the cleaners.  After rinsing, the coupons were left to fully air dry before having their clean weights recorded.

Tested Cleaners:

A. Surface Cleanse 930 2% (Heated 130F)

B. EcoSafeway High pH Cleaner 5% (Unheated)

C. BevSafe CR 4.5% (Heated 120F)

Trial Results:

Cleaner Initial wt of cont. Final wt of cont. %Cont Removed % AVG
Surface Cleanse 930 2% (130F) 0.2848 0.0008 99.72 99.78
0.3643 0.0012 99.67
0.3581 0.0002 99.94
EcoSafeway High pH Cleaner 10% (unheated) 0.3409 0.0017 99.50 94.49
0.4174 0.0003 99.93
0.5142 0.0820 84.05
BevSafe CR 4.5% (120F) 0.4547 0.0003 99.93 99.96
0.4430 0.0003 99.93
0.4984 0.0000 100.00

Success Rating:

Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.

Conclusion:

All three cleaners were highly effective in removing the kettle liquid from stainless steel.  The Eco Safeway High pH Cleaner seemed to struggle a little bit with some of the larger suspended solids within the kettle liquid, but was still effective.

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