Trial Number 0

The following experimental procedure is in accordance with TURI’s cleaning standard operating procedure for kitchen soil removal.

Soiling Process:
A set of pre-weighed stainless steel and aluminum coupons were contaminated with 0.5 grams of DCC-17 soil using a handheld swab onto the center of the coupon’s surfaces. DCC-17 was made with the following ingredients: Vegetable Shortening 33%, Lard 33%, Vegetable Oil 33%, and Carbon lampblack 1%. After all the stainless steel and aluminum coupons were contaminated with DCC-17 soil, the coupons were allowed to sit overnight then re-weighed to determine the amount of contaminant added.

Cleaning Process:
Three soiled substrates were placed into a Gardner Straight Line Washability unit. Two Wypall X60 reinforced wipe was attached to the cleaning sled and soaked with 1 spray of cleaning solutions. The cleaning solutions were diluted to the desired concentrations specified by the vendor and heated to a temperature of 110 oF. Each substrate was sprayed 1 time with the same cleaning solution. The solution was allowed to penetrate for 30 seconds and followed by cleaning in the SLW unit for 20 cycles (~33 seconds).

Efficacy Rating Process:
The substrates were left to dry at room temperature for an hour before weighing to determine the amount of contaminant removed.

The objective of the experiment is to compare the efficacy of the sampled cleaners: Vi-Jon Premium Pot & Pan with the Brady Premium Pot & Pan.

Comparative Analysis
Vi-Jon Premium Pot & Pan was observed to be as effective as the comparative cleaner, Brady Premium Pot & Pan, on cleaning stainless steel substrate coupons; with respective efficacy ratings of 87.86% and 86.08%.

In comparison between Vi-Jon Premium Pot & Pan with Brady Premium Pot & Pan the respective efficacy was observed to be 84.27% and 86.35%. Table pertaining to the amount of contaminant added and removed using a gravimetric scale by its respective cleaning agent to measure the efficacy of the cleaners.

In conclusion, the cleaning agents are listed in the following order from the observed most effective to the least effective cleaners for DCC-17 soil removal without prior soak in cleaning solution: Brady Premium Pot & Pan, Vi-Jon Premium Pot & Pan.