DY -“No, Health, you are washing it off with water, and the keili is not separating a mixture. Did you see the halachah in Shulchan Aruch I referred to? P’soles is often subjective, cso for you pesticide might very well be p’soles, but the keili isn’t a factor”
Even though the water does it, it’s being helped by the holes. Isn’t this a Sofek D’oraysah?