a few weeks back, I finished brewing my ginger-peach wheat which had 5lbs of peaches in the secondary.
The coating that stuck to the inside of my carboy from the peaches was incredible and survived two oxyclean soaks. Scrubbing every inch of with the carboy brush is something I never want to do again.
Primary: NB's Cream Ale
Bottled: NB's Chocolate Milk Stout