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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