Lina Wachtelborn Meier, The Art of German Cooking and Baking… (1922)
“ The cask must be very clean and odorless. Scald it several times and then dry it in the fresh air, put in the sugar and enough water to dissolve it while shaking the cask. When the sugar is dissolved, add the strained juice. Place the cask into a place like the garret where it is warm. It will soon ferment, then remove the foam from the bunghole every morning, stir the wine with a clean wooden stick and fill in fresh water so the cask remains full. ”
