Plunger Is Difficult to Press Down
The grind is too fine. French press requires a coarse grind — a fine grind compacts against the filter and creates excessive resistance. Use a coarser grind setting and try again. Do not force the plunger, as this can crack the carafe.
Coffee Is Gritty or Has Grounds in the Cup
This is typically caused by a grind that is too fine, allowing particles to pass through the filter mesh. Switch to a coarser grind. Also check that the filter assembly is fully screwed together and that the spiral plate, cross plate, and filter plate are all properly seated — a loose filter allows grounds to bypass the mesh.
Coffee Tastes Weak or Watery
The grind may be too coarse, the steep time too short, or the coffee-to-water ratio too low. Try steeping for a full 4 minutes, increasing the dose slightly, or adjusting the grind slightly finer. Also ensure the water temperature is in the 195–205°F range — water that is too cool will under-extract.
Coffee Tastes Bitter
Bitterness usually indicates over-extraction — the coffee steeped too long or the water was too hot. Pour the coffee immediately after pressing rather than letting it sit in the carafe. Also check that you are not steeping beyond 4 minutes.
Carafe Is Cracked or Broken
Replacement glass carafes and filter components are available directly from Bodum at bodum.com.