2.5 yrs, im not shitting you, I thought it would of been un drinkable, but tastes the same as i remember. the reason for the delay was we moved to qld, I had to give my old fridge away, I also gave my co2 to a mate in wagga wagga, and I have been with out both up untill about 2 weeks ago, I hired a new co2 bottle and I converted a little VB fridge, fits my 2 corny kegs beaut, So im back brewing.
casey