Walnuts are delicious, healthy, have a deeply rooted history and are becoming increasingly popular again, but what about their shells? Their hard yet light material could be of use, but instead they disappear in the trash. However, at the Böllersen Walnussmeisterei, which is dedicated to the replanting of walnut trees in Brandenburg and has its own cracking machine, walnut shells are collected, but only to be used as firewood.
For me, the main task was to develop a new, sustainable material from walnut shells. On the one hand, to give this „worthless“ part of the walnut a value after all, and on the other hand out of interest in its actual potential. So they were ground to different finenesses and processed with different binders into flat composite materials. The result is a wide variation in hardness levels, surface structures and looks.