Name for the one to two centimeters thick, gray-green to black mold with the botanical name Zasmidium cellare or obsolete Cladosporium cellare. Other names after the coat or cloth-like appearance or the nature are Kellerkatze (orally in Austria "Köllakotz") or black cat and cellar cloth (picture right). The mold forms especially in wine cellars with stock of wooden barrels and very high humidity over 80% on walls, bottles and barrels. However, he is not tolerated in the latter because it attacks or negatively affects the wood.
The cellar mold feeds on the volatiles of wine like alcohol. acetic acid and ester, The need for nitrogen and sulfur is made from vapors of carbon disulphide, hydrogen sulfide and sulphurous acid educated. Unlike other molds, no unpleasant odors are formed. By regulating the humidity it is very desirable and the presence indicates optimal conditions. The "real" has a completely different meaning basement cat that used to stay in basement vaults often because of the mice. See also below Customs in viticulture,