I has always been an advocate of Kundstoffbrettchen and had me auseinandergesezt also little with this issue, until my husband had read about a report and we discussed what was now better. So we can teach us and have met with boards made of oak. And for good reason, as I now know. We then decided on this small board, even if the price we seemed quite high. But it also fulfills a social purpose indeed. The boards is really nice and we liked it just does not take into use. Today, after a week it is here to stay! Although we have already much cut out and with really sharp knives, we still do not see a use track! Cleaned we have so far only under running water with a little detergent if necessary. Dry letting then upright on the work platform, leaning on dry tile mirror, where it then stops until the next use. Optimal! There are boards that even bigger and it will be our next acquisition, because we are just thrilled and confident! Oh yes, we have immediately destroyed the old bacteria spin. Only one thing we have retained, because we still do not trust onions on the new boards to cut us. In short, the boards is worth the money!