Well what i did was empty a Fresca 2 liter bottle that was the same age as that beer...and put two of the bottles in it to get it off the old yeast cake but after i put CO2 in the bottle of course...i tasted the beer ...wow its kinda like the 20 percent sam adams...after carbonation it will be a ...welll maybe good...I will open at the next meeting..real old barleywine......Jeff