Apparatus and method for manufacturing a glass tube

An apparatus for manufacturing a glass tube, in particular for the continuous production of a glass tube, with a shaft (9), in which a glass melt is introduced, is so that the outer profile of the glass tube (1) at least partially defined by the shaft, and having a coaxially inside the shaft extending shaping means (10) for fixing the inner profile of the glass tube (1), wherein the shaping means (10) is cooled, characterized in that the shaft is arranged vertically, so that the glass melt in the shaft (9) to form a free meniscus is eingiessbar, wherein the shaping means (10) is cooled so that the molten glass at this to a temperature below the softening temperature of the glass is cooled and the molten glass in the shaft to the glass tube (1) solidified.