Biocarbon is considered as an important alternative to replace fossil carbon as reductant in metallurgical industries. After its production, the properties of the biocarbon might change during long-term transportation and storage under specific conditions. In this work, effects of storage time and conditions on the properties of two kinds of woody biocarbon were investigated. The studied biocarbons were stored under well controlled conditions in a climate cabinet and were sampled along the storage time for moisture uptake measurement and general fuel property characterization. By carrying out the laboratory scale study a more systematic and simultaneous analysis of the impact of relative humidity, storage temperature and time on properties of biocarbon was achieved. Tumbling tests were carried out to investigate the effect of storage time and conditions on the mechanical strength of the biocarbon samples. The results of this work are important for selection of proper biocarbon logistic solutions to secure the desired biocarbon properties for further utilization as reductant in metallurgical industries.