Recommended quantities for the perfect coffee: 

Espresso: 1 x capsule (30ml coffee for short, 50ml for long)
Macchiato: 1 x capsule (30ml coffee for short, 50ml for long) with a dollop of froth
Latte/Flat White/Cappuccino: 1 x capsule (30ml coffee) with 95ml of milk
Strong Coffee: 1 x capsule (50ml coffee) with 75ml of milk
Medium Coffee: 2 x capsules (60ml coffee) with 150ml of milk
Large Coffee: 3 x capsules (90ml coffee) with 210ml of milk