Our third Life and Limb collaboration is a strong, dark beer that's rich, full-bodied and always evolving thanks to brewer's yeast at work in each can. Life and Limb, alive with yeast, also features syrup from birch and maple trees, including those on the Calagione family farm in Massachusetts. While Life and Limb celebrates a special kinship between Sierra Nevada and Dogfish head, our two branches weave into thousands of others to make up the craft beer family tree. sip slowly with friends and loved ones, savor long—because one could do better than be a swigger of birches.