Packaging assembly for the transport or storage of roasted coffee beans, comprising: - at least one impermeable bag , impermeable at least to oxygen and water vapour; - said at least one impermeable bag being flexible and sealable in a watertight manner to prevent the introduction of fluids or gases inside the impermeable bag ; wherein - said at least one impermeable bag internally delimits an impermeable bag inner volume ; wherein said impermeable bag inner volume is a single volume comprising roasted and ground coffee ; - said assembly also comprises at least one unidirectional valve sealingly applied to said at least one impermeable bag and that only allows gas to escape from the impermeable bag preventing the entry of gas into the impermeable bag , characterised in that the single volume comprising roasted and ground coffee is for at least 100kg; wherein said at least one unidirectional valve makes it possible to achieve an overpressure inside the impermeable bag variable from 3 to 60 mbar; wherein - said assembly further comprises at least one protection and transport sack ; - said at least one protection and transport sack is fitted over said at least one impermeable bag for protection against the risk of damage of the impermeable bag and to facilitate its handling; - said at least one protection and transport sack comprises a tubular protection and transport sack wall , as well as a protection and transport sack bottom with closable protection and transport sack discharging or unloading opening and a protection and transport sack loading portion delimiting a closable protection and transport sack loading opening , mechanically closed, - said at least one protection and transport sack is flexible; - said protection and transport sack comprises loops or handles suitable for handling the assembly . - at least one impermeable bag , impermeable at least to oxygen and water vapour; - said at least one impermeable bag being flexible and sealable in a watertight manner to prevent the introduction of fluids or gases inside the impermeable bag ; - said at least one impermeable bag internally delimits an impermeable bag inner volume ; - said assembly also comprises at least one unidirectional valve sealingly applied to said at least one impermeable bag and that only allows gas to escape from the impermeable bag preventing the entry of gas into the impermeable bag , characterised in that the single volume comprising roasted and ground coffee is for at least 100kg; wherein said at least one unidirectional valve makes it possible to achieve an overpressure inside the impermeable bag variable from 3 to 60 mbar; - said assembly further comprises at least one protection and transport sack ; - said at least one protection and transport sack is fitted over said at least one impermeable bag for protection against the risk of damage of the impermeable bag and to facilitate its handling; - said at least one protection and transport sack comprises a tubular protection and transport sack wall , as well as a protection and transport sack bottom with closable protection and transport sack discharging or unloading opening and a protection and transport sack loading portion delimiting a closable protection and transport sack loading opening , mechanically closed, - said at least one protection and transport sack is flexible; - said protection and transport sack comprises loops or handles suitable for handling the assembly . <EOS>