Acidic is a good descriptionMcDo's for me but I usually end up getting Timmies only because they're everywhere. I drink my coffee black and I find Timmies a bit 'acidic' for my taste. Plus Mickey D's just has better deals...dollar coffee's or you get 7 cups and the eight is free. If there weren't so many Timmies location I would go to Mickey D's always for coffee.