I had two carboys in the basement for 12 years. The airlocks had gone dry and I didn't know what to expect of the beer. Nothing was growing on top and it was in the secondary. Being it was an 11% Eisbock I thought it might be okay. Tasted it two days ago and was very surprised. It had survived very well indeed. I kegged the 1st carboy yesterday and will be bottling this beer. The alcohol is evident along with the malt and some prune like fruit aroma. The alcohol flavor is smooth with a full malt body and flavor. Checked my old recipe notes brewed it on March 25, 2000. Racked to the secondary April 16, 2000. O.G. was 1.110, T.G. into secondary was 1.028. After 12 yrs it read 1.025 which makes for an 11.15% Eisbock.