Should be more of a visual thing then anything else,IMO.I’m going to have 3 fryers and go from 1,2,3.Wings will always be cooked in the ‘dirtiest’ one and fish,if u have it, in the cleanest.When the dirtiest one gets changed then that becomes the ‘clean’ one.If you have a few days where people order few fried items for some reason,are you going to change because it’s been so many days?
Derek