This cave opens in a sandstone stratum, located below the conglomerates. It can be seen that at some point in its history it was partially excavated for use as a dwelling, from the existing space between the sediments (most probably brought by the nearby stream) and the sandstone stratum.

The entrance is 2.65x2.39 metres and gives access to a gallery where after 3 metres we find a basin that collects the water from a drip. Two metres further on we find a step 0.4 metres high and the gallery widens to 5 metres, while the height drops to 1.7 metres. The gallery continues 5 metres more but the height gradually decreases until only a space 0.44 metres high remains; about 8 metres more can still be covered until it becomes impassable.

At 3 metres from the entrance we find a basin made of stones with a water trough on top that collects a drip from the ceiling. On this drip, the upper part of an upturned pitcher has been set with cement, in order to channel the drip into the trough; hence the name of the cave.