I just tried goats milk for the first time about a week ago. It had a bitter/goaty after taste. I took all molasses out of her diet, and that helped a lot with the bitterness. I need to copper bolus her still. I have heard that helps as well. She still has the goaty taste, so I am not sure where to go next. I am assuming it is something she's eating... But I have yet to find out. Hope this helps a little.