More about Build Your Own Earth Oven: purchase This brand new, completely re-written edition features: revised text: updated, expanded, and completely re-organized so as to simplify the making of a super-insulated design that holds heat longer and burns less fuel; as well as a simplified, 4-step recipe for making really good (wholegrain) sourdough bread - written by Hannah Field, a former professional baker who has worked in wood fired and organic bakeries on both sides of the Atlantic (also the author's wife). Also: a foreword by Alan Scott, grandfather of wood-fired ovens . . .