Six pre weighed ceramic coupons were assigned to each cleaner, three to be soiled with the DCC18 (a mixture of soybean oil, lard, whole egg powder, potato flour, and deionized water) and three to be soiled with spaghetti sauce. Once soiled, the coupons were left to dry overnight before dirty weights were taken. The next day, the coupons were hand washed with a sponge for 10 seconds. Two pumps of each cleaner were applied to the sponge for washing (3g). After the 10 seconds of washing, the coupons were rinsed with room temperature tap water for 1 second. The coupns were then left to air dry before final weights were taken.
Both cleaners were effective in removing the DCC18 soil and performed equally well. Neither cleaner was effective in removing spaghetti sauce from the coupons, however the GMA dish soap performed better than the Dawn dish soap in this aspect.