It's one easy step you might not yet be incorporating, but once you do, you'll never go back. Preheating your mug with boiling water before you pour your coffee into it won't improve a mediocre cup of ...

Ironically, it doesn’t need to really boil, just gently cook in simmering water. Customise this recipe ... plastic bag and wedge the bottom into a mug so that the bag is held open.