Big Lake Brewing Undertaking is an Imperial Stout by style. We combined three grain mashes and double boiled this beer to create a rich stout worthy of the undertaking it took to create it! This craft beer is 13% ABV and 15 IBUs. In this beer review, we will review the color, smell, and taste of this craft beer. If you are looking for the next craft beer to try you are in the right place.