I've used Columbus hops a lot. However the last couple brews when I bitter with them, they give me a fruity-ish flavor that I really don't like at all. I purchased two pounds last year and just recently opened the second pound. It seems every beer that I use them in, I find a disagreeable taste in it. I only use us-05 or nottingham in these beers and they ferment at app. 60 degrees.
Could there be something in the hops themselves that are causing this?