I don't know what the issue is but I've had a few different beers that have had very strong latex/rubber/balloon smell and flavor to them. Kiwi Rising, Cisco HBC Hopsickle and now the Mayflower 5th Anniversary DIPA. I know that it's not the beers themselves. I thought at first it might be since the Kiwi Rising and Cisco had been sitting on my shelf for some time. But after having it happen to the Mayflower I know that it can't be the beer. I got a few fresh from the brewery and had one last night with no problems at all. The common thread for the off beers is my girlfriend's house. At my house the beers taste fine but at hers, 3 out of 4 times hoppy beers taste like balloons. My question is what could be the cause and how can we fix/prevent it?