A process for preparing a bituminous mix, said mix comprising a mixture of aggregates and bitumen, said process comprising the following steps: - drying said aggregates by heating in order to obtain hot aggregates having a temperature Tch ranging from 40 to 400°C, preferably from 100 to 220°C, - screening and mixing of the hot aggregates, addition of bitumen and optionally of fillers and of bituminous mix aggregates, in order to coat said aggregates, said process comprises, before the step of screening, mixing and coating, a step of storing the hot aggregates obtained at the end of the step of drying by heating, for a duration at least greater than 24 hours, and preferably ranging from 3 days to 12 months, during this storage step the temperature of the aggregates Tst is such that the ratio (Tch-Tst)/Tch is less than or equal to 20%, preferably less than or equal to 10%, and more preferably still less than or equal to 5%. Another subject of the invention is a device for storing hot aggregates, comprising at
