My coffee tastes too bitter, sour, or strong.Updated a day ago

• Too bitter — over-extracted. Try a coarser grind, less coffee, or shorter contact time.

• Too sour — under-extracted. Try a finer grind, more coffee, or longer contact time.

• Too strong — use more water or less coffee.

Also worth checking: filtered water makes up 98% of your cup, so water quality makes a real difference. Make sure your machine is also clean and descaled.

We've put together detailed guides for every brewing method on our brewing guides page — it's the best place to dial in your perfect cup. Our coffee blog also has plenty of tips if you want to go further.