I have grower in crumbles and a good percentage of it is powder (what you call mash). I'm think the product has good ingredients, but I am pretty disappointed with the high percentage of powder. So what the heck do you do with the mash to get the chickens to eat it? My chickens won't eat it and it just clogs up the feeder until I scoop it out. Call me crazy but I am sifting out the powder so the birds have something they can pick up and eat. What, pray tell, do you do to the mash to make them eat it? Make cookies? Lol!!