I guess you don't wash flour, but it does need to be disinfected (eg by cooking it) - it's a little unsafe to eat raw, which is the problem with raw cookie doug

I guess you don't wash flour, but it does need to be disinfected (eg by cooking it) - it's a little unsafe to eat raw, which is the problem with raw cookie dough. If there was a way to get rid of the insect eggs people would presumably want to do it too, but iirc they're just too small to filter out.