"In our Vollkornbrot master recipe," he says ... Vollkornbrot is a dense, whole grain German brown bread made with dark rye flour. As for its inclusions, rye berries are whole rye kernels ...

Myhrvold explained that these recipes are all sourdough based ... which Myhrvold calls, "An iconic German bread that offers a rye-on-rye experience," as it is also studded with soaked rye berries.