Mine get mash every day regardless, because they love it so much So the dust is really not a problem for me at all. I collect it from the bottom when they empty the feeder, otherwise I just wet some of the crumble. I really enjoy this process, actually. Especially in the winter when I wet it with hot water, and it smells so delicious that I have to stop myself from taking a spoonful It also reminds me of when I was growing up and grandpa would make similar concoctions for the various farm animals, and it would always smell sooooo good...Mine eat whatever I give them and I don't get much waste either way. Every week or so I dump the dust from all the feeders into a pan and make wet mash. They think they're getting a treat.