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Trial Number 0

Trial Purpose:

To evaluate the effective ness of 5229 AFCO cleaner and 4325 PerOx sanitizer in cleaning and sanitizing stainless steel alloys 304 and 316

Date Run:

08/09/2022

Experiment Procedure:

Six stainless steel coupons were used, three being the 304 alloy and three being the 316 alloy.  The initial weights of each coupon were taken.  The coupons were then soiled with Cedar's Chocolate Hommus by wiping a thin layer, but leaving some chunky spots, and the bottom half of the substrate.  The dirty weights of each coupon were then taken.  Coupons were immersed in the heated cleaner 5229 AFCO 1.1% (160) F) and put in the ultrasonics machine for 20 mins.  Directly after removing the coupons from the cleaner, they were then immersed in the sanitizer 4325 PerOx 0.05% at room temperature (68 F) and put in the ultrasonics machine for five minutes.  The cleaned coupons were left to air dry for 8 hours. ATP levels were measured using Hygenia ATP Swabs followed by clean weights being taken for each coupon.  

Trial Results:

Cleaner Substrate Initial wt Dirty wt Clean wt. Initial wt of cont. Final wt of cont. %Cont Removed % AVG % Overall ATP Level AVG Overall
5229 AFCO Stainless steel 304 60.952 61.0901 60.9654 0.1381 0.0134 90.30 80.94 74.69      
Stainless steel 304 60.888 60.9767 60.9158 0.0887 0.0278 68.66
Stainless steel 304 60.99 61.0842 61.0052 0.0942 0.0152 83.86
5229 AFCO Stainless Steel 316 49.3098 49.4131 49.3436 0.1033 0.0338 67.28 68.45
Stainless Steel 316 49.4612 49.5326 49.4963 0.0714 0.0351 50.84
Stainless Steel 316 49.4888 49.7806 49.5261 0.2918 0.0373 87.22
4325 PerOx Stainless steel 304   0.00 0.00 10.67
Stainless steel 304   0.00
Stainless steel 304   0.00
4325 PerOx Stainless Steel 316   22.00 21.33
Stainless Steel 316   4.00
Stainless Steel 316   38.00

Visually, cleaners did not remove all of the hummus off of each coupon after the cleaning step.  During the sanitizing step the rest of the hommus was removed.

Success Rating:

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

Conclusion:

The 5229 AFCO 1.1% was not the most effective cleaner for removing chocolate hummus from stainless steel.  The 4325 PerOx 0.05 was a reasonably effective sanitizer for sanitizing stainless steel.

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