This will be shipped directly from Germany, please allow 7 to 14 working days for delivery. Please note, ball valves are not included & sold separately. Click Here for ball valves. Click Here for an Airlock & Bung for the Fermentegg The organic fermentation in the egg-form is based on the golden ratio without corners & edges. Wine, beer & cider can move fluently during the fermentation & storage. This gentle process guarantees on keeping the complete development of the product. The idea of fermentation or aging in the egg is just a come back to the ancient methods but with the new materials. Already in the ancient times beer has been placed for resting into the egg-formed amphoraes. Recently there were several successful tests for storage wine in the egg-formed fermentation vessels made from concrete. Shortly after Speidel has developed the fermentation egg made from food-safe polyethylene.