Insofar as an intermediate cleansing has not been carried out, hygienics are apriority, since contamination and bacteria or other parasites accumulate on the surface of the removable sievelike cover and upon drinking the beverage, such impurities can find their way into the body of the person drinking.WO 93/08087 discloses a beverage can, which has a tear-open top closure, which, by means of a lev