To evaluate the effective ness of LFE Enzymatic cleaner and NaDCC tablet sanitizer in cleaning and sanitizing stainless steel alloys 304 and 316
Date Run:
08/10/2022
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 Hummus 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 LFE Enzymatic Cleaner 2.5% (130 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 NaDCC tablets 269ppm 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 of cont.
Final wt of cont.
%Cont Removed
% AVG
% Overall
LFE Enzymatic Cleaner
Stainless steel 304
0.3561
0.0021
99.41
99.66
99.20
stainless steel 304
0.2177
0.0028
98.71
stainless steel 304
-0.7176
0.0062
100.86
LFE Enzymatic Cleaner
Stainless Steel 316
0.3462
0.0076
97.80
98.74
Stainless steel 316
0.2527
0.0033
98.69
Stainless Steel 316
0.2554
0.0007
99.73
ATP Results
Cleaner
Substrate
ATP Level
Avg
Overall
Caprylic Acid Sanitizer
Stainless Steel 304
1
2.7
9.3
4
3
Caprylic Acid Sanitizer
Stainless Steel 316
22
16.0
22
4
Sanitizer left white residue
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
LFE Enzymatic Cleaner 2.5% (130 F) is an effective cleaner for stainless steel alloys 304 and 316. NaDCC tablets 269ppm are not an effective sanitizer for stainless steel alloys 403 and 316
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