Abstract: The invention relates to a method for dosing a colour paste, comprising the step of removing from a stock package and entering in to a container a predetermined amount of colour paste, said stock package comprising an output for the dosing of said colour paste. The method is characterized in that it comprises the step of using a stock package with: a first pressure chamber at a first pressure; a second pressure chamber at a second pressure which is lower than the first pressure, which chambers are in contact with each other by means of a shut-off valve in order to keep a mutual pressure difference substantially constant; and a storage chamber which comprises the colour paste, said storage chamber being in pressure contact with the second pressure chamber and being in sealable connection with the output by means of a dosing valve for dosing the colour paste when opening the dosing valve, with the provision that the pressure in the storage chamber is higher than the pressure outside the stock package.