The invention relates to a container (100) for holding a photosensitive liquid for use in a stereolithographic system (410) in which a reference layer is exposed to radiation for the layer-by-layer or continuous construction of workpieces. At least one element (130) of the container which is directly adjacent to the reference layer consists of at least one material which is at least partially permeable to the radiation and at least some of which has structures and/or pores which can receive and discharge, preferably also store, an inhibitor and/or an inhibitor mixture. Therefore, the element is not just able to supply the inhibitor but to a significant extent consists of the inhibitor itself, as a result of which the supplied flow is equalised or homogenised. Rapid or even continuous 3D printing is thus made possible in a cost-effective manner.