It is used for production of attractively tasting mixed-type bread based on natural rye leaven with an addition of various grains. By applying this concentrate you can quickly and easily make tasty wheat and rye bread with addition of: sunflower seeds, soybeans, corn grits, and flaxseeds. The rye leaven the concentrate naturally contains not only makes production quicker and easier thanks to omitting the time-consuming leaven preparation stage, but also enhances the crumb colour as well as bread taste and aroma.