Description for a negative bitter and hard taste (also tinny, tintig) of a wine in the context of a wine address, High metal contents of aluminum, iron. copper or zinc in the wine, the wine mistakes Black break (Metallic taste) and cause white breakage. The wine can be a flaky one cloudiness from milky-white to blackish-green in color, therefore one also speaks of metal haze. The metals can already get out of the vineyard floor or through fungal infection have come into the grapes or are influenced by acids and tannins at the barrel aging been removed from drum nails. In part (iron, copper) this can be done by beautiful (Blue tint) are eliminated. Also when opening a bottle, a contact of the puller with the wine to a metallic note. Wines with one mineral Taste taste may also have very light metallic tones, but in this case no wine faults mean. Metallic may not be synonymous with the positive term steely be confused.