* First make the wheat sourdough. 24h previously. So you take: some rye sour, about 20g and mix it with 100 g wheat flour (1050) and 200 g water (40 ° C). Leaves it standing for 24 hours. The toast bread dough: Put all ingredients in a bowl and mix slowly for 3 minutes. Then 5 minutes quickly. Best in a dough machine or with a whisk / dough hook. The dough temperature should be around 25 ° C. Because dough then 30min. Leave covered. Then put the dough in a loaf pan and place a tray on top. Bake at 230 ° C top / bottom heat for 40 minutes.