How do I know which capsule to use for which drink?

The top of the capsule will tell you which drink it is, but you will need to look at the colour of the base to see which kind of capsule it is, whether milk, coffee, chocolate or a cold variety:

 -Milk capsules have a white base 
- Coffee capsules have a black or dark brown. 
- Chocolate capsules have a light brown base
- Cold drinks have a silver base.