The invention relates to a PEG probe having a PEG tube, an outer holding plate, through which the PEG tube is fed and in which the PEG tube is fastened, and a funnel adapter, which is associated with an outer end region of the PEG tube. A tightly closing valve is arranged either in the PEG tube between the outer holding plate and the outer end region or on the outer end region of the PEG tube. The valve blocks the flow through the PEG tube in a closed position and allows said flow at least in the full cross-section of the PEG tube in an open position. The valve has a valve body and a valve housing. The valve body is connected to and movable by means of a handle accessible from outside. The valve body is supported in the valve housing.