My chicken don't like pallets unless I starve them first. So I switched them to organic feed which I don't think is crumbles but just a bunch of grains mixed together. My problem is that they leave the small particles/powdery stuff behind so I am worried about them not getting a balanced diet.
You can add water and turn it into mush, then there's no more powder You can also go as far as fermenting the feed, does the same thing but also adds good bacteria. I used to feed the left over crumble powder with plain yogurt and give that to them in the mornings for the probiotics but now I just ferment feed. It's super easy. I just put a little food in a 5 gallon bucket and add de-chlorinated water. I keep the water level about an inch over the top of the feed, and I keep the bucket covered with a towel then I just scoop what I want to feed them with a strainer. They go crazy for it and zero waste.