Yes, the brewery sells GMO free beer. The GMO-free movement is very strong where I live (Richmond, BC, Canada). In 2012 city council passed a resolution banning GMO crops in the city. Does that have some relevance to my question that I don't see?
I've been feeding spent grain from a local brewery whenever it's available in addition to commercial GMO free laying ration. The chickens clearly LOVE the wet mash and seem to eat it in preference to just about anything. I decided to run an experiment so see how much commercial ration it was...