Here’s a pro tip, says Christos Soteriou. If you’re in a place with no good options – at the airport, say – and desperate for a coffee, go to Starbucks (or whatever the big global chain is), grab an Americano, and add some salt.
The salt will absorb the bitterness, so the coffee should be at least halfway-drinkable. Just make sure you don’t use the thick kind of salt –
