What are the steps to descale the machine?

When the CLEAN/DESCALE light is solid, proceed as follows: Dissolve one Breville Descaling powder sachet into 1 liter of water and fill the water tank. Press and hold the 2-CUP button then simultaneously press and hold the POWER button to enter Descale mode. When all buttons light up continuously, press the 1 CUP button for coffee component descaling (takes approximately 25 seconds). Then turn the steam dial RIGHT towards the icon to descale the steam component and LEFT to descale hot water components. Afterward, rinse thoroughly with fresh cold water and refill the tank before repeating the processes to clear any residues. The machine will automatically shut off if inactive for five minutes during this process. (Page 24)