Abstract: Dough products are stored in a fermentation chamber on a rack system in which in each of a multiplicity of horizontal planes located one above the other, the palettes carrying the dough products are substantially contiguous and are pushed from rack to rack section from the upstream side to the downstream side upon the insertion of a palette at the upstream side. The empty palettes are recirculated below the palettes carrying the dough products and the displacement is effected solely by pressing of each upstream palette against the next downstream palette.