In a context where our economical and consumption model is mainly designed to be linear, the global annual production of wastes is estimated around 2 billion t/a, continuously , raising over 40 million t/a today and corresponds to a waste generation of 3.4 million t/a (2008) in Europe alone. BSG is an inexpensive raw material with an estimated cost around 35€/t of dry matter or 42 USD/t . Its all-year-round availability and low cost make it an interesting resource for various applications. However, it is rapidly perishable due to microbiological instability: high MC and presence of fermentable sugars, with a shelf life of 2-10 days depending on storage conditions. Due to its high moisture content, the major part of its cost is brought by the transport but mainly by the drying process of this biomass with a high environmental impact of 495-770 kgCO2/tBSG (CO2 equivalents) for the latter. Arranz et al. have developed a solar oven as an alternative to conventional drying techniques for BSG (convection drying or infra-red drying ), lowering the environmental impact to 0 kgCO2/tBSG but increasing the drying time 10-fold. The elimination of the water contained in renewable biomass is a major challenge that needs to be taken into account when designing valorisation routes to prevent having a greater environmental impact than the petroleumbased counterpart they try to supplement. Examples of biomass valorisation have shown that water elimination can cover up to 80% of the energy cost, before the actual valorisation process even begins. Thus, an LCA (Life Cycle Analysis) should be performed when possible to confirm the benefit of such routes and new materials. By assessing the techno-economic feasibility, the environmental impacts and energy consumption of BSG's valorisation, a recent study showed that water removal was indeed an important step of the process in terms of environmental impact, advocating mechanical dewatering such as screw, centrifugal, hydraulic or membrane filter presses. Without eliminating the risk of microbial growth of BSG like a complete drying would, the mechanical dewatering should prolongate the shelf-life of BSG before its valorisation, that can be as low as 48 hours for wet BSG (with around 80% WC).