Sofia Electric Brewing Beef Juice Volume 3The Beef Juice series is back! Beef Juice Volume: 3. Beef Juice series is all about what Bulgarian oak can impart into a beer. Aged for 25 Months this oatmeal imperial stout is dominated by tons of bold chocolate, burnt sugar, maple syrup flavours also accompanied with a long marzipan oak finish. Big Bodied and beefy this beer will keep you honest. This beer like all our beers is vegan. Only 600 Bottles and a handful of kegs were made of this beer.