The LUMINEU project aims at developing a pilot double beta decay experiment with the help of scintillating bolometers based on ZnMoO4 crystals enriched in the isotope under investigation, namely 100Mo. In the next months reg- ular deliveries of large-mass ZnMoO4 crystals are expected from NIIC (Novosi- birsk, Russia). It is therefore crucial for the LUMINEU program to test system- atically and in real time these samples in terms of bolometric properties, light yield and internal alpha contamination. In this paper we describe an aboveground cryogenic facility based on a dilution refrigerator coupled to a pulse-tube cooler capable performing these measurements. A 23.8 g ZnMoO4 crystal was fully char- acterised in this setup. We show also that macro-bolometers can be operated with high signal-to-noise ratio in liquid-free dilution refrigerators.