Fecha de publicación: 08/12/2022 Fuente: WIPO "hemp" A flexible packaging system for containing, storing, preserving, and transporting agricultural biomass, such as cannabis or hemp, including an outer shell and an inner liner nested within the outer shell. The inner liner is made of a liquid and gas impermeable material, in which the inner liner defines an interior space and includes a fillable opening through which the biomass is loaded and also includes a two-way sealable spring valve, which allows the controlled passage of gases into and/or out of the interior space, allowing the biomass contained therein to be surrounded only by inert gas, such as nitrogen for up to several months. Containing biomass within the disclosed flexible packaging system maintains the moisture content of the biomass and also prevents the cannabinoid levels from degrading over time.