How long does the electric sterilising programme take, and how will I know it has finished?

The sterilising programme runs for 7 minutes and then automatically stops, signalled by 3 long beeps and the light stopping its flashing. After the programme ends, a 4-minute cooling down period begins with all 4 LEDs lit, which also ends with 3 long beeps. You should allow the Steriliser to cool before removing the lid. (Page 4)