Sourdough Sour HeelThe heel of a loaf of sourdough bread rests on a cast iron pan.Honey Brown Lager BreadA loaf of sourdough inside the oven.Proof of BreadA well-proofed loaf in a baneton.Guinness DoughA rough blend of flour and beer kick off a bread making effort.Sour-dudOver-proofed bread from late-June 2021 during a local heat wave.Honey Brown Lager BreadA loaf of sourdough cools on the countertop.Guinness Sourdough IngredientsIngredients for a loaf of beer-based sourdough.