The only grapefruit citrus beer that I have enjoyed is Legacy IPA by Saranac. I'd describe it as crisp, clean grapefuit but balanced with a beer taste and not oily/musty like some grapefruit ones. My favorite beers tend to be lagers like Zywieck, Okocim, Spaten. I've used East Kent Goldings for bittering and Hallertau/Saaz for aroma in my homebrews so far and can vouch for no citrus taste. My last brew used Tettnanger but still has 2-3 weeks to go before tasting. I didn't like the smell of the tett pellets as much as the hallertau. I'd say they had a slightly grassy smell compared to the spicy hallertau. I'm thinking of ordering a bine of mt. hood and crystal from this website to plant in my backyard. They sound like improved versions of Hallertau with resistance to disease: http://www.greatlakeshops.com/mount-hood.html Perle is also on my list of hops to try. Have fun experimenting with different hop varieties.