Term (also cork pores or cork warts) for the lenticular or round air-permeable pores in the area of the bark (outermost layer) of wooden plants, which enable gas exchange between the atmosphere and the living tissue. The cork lying under the bark is permeated by lenticels in the form of passages for this mass transfer (water and gas). The fewer lenticels in a bottle cap cork are present, the better the quality. On the one hand, the cork is denser and, on the other hand, contaminants or contaminants can be found in the lenticule ducts bacteria be stored, which leads to taste impairment and the feared corked can contribute. In the past, lenticells were therefore cut out by hand in the production of high-quality products. However, today this is no longer possible due to industrial production.