Diagnosis
Inconsistent or too-coarse grinding is the top culprit, often due to worn burrs or the grind selector not being fully engaged. Second is incorrect coffee-to-water ratio.
How to Fix It
Adjust the grind and measure precisely.
- Set the grind selector to the finest setting (fully clockwise). Listen for a consistent grinding sound, not a sporadic one.
- Use the manufacturer's recommended ratio: 1 level scoop of whole beans (from the provided scoop) per cup (5 oz) of water. The 'cup' on this machine is 5 oz, not 8 oz.
- For a full pot (12 cups), you need 12 scoops of beans. Do not eyeball it.
- Run a brew cycle and immediately taste. If still weak, your burrs may be too dull to achieve a fine grind anymore.
If That Didn't Work
The water might not be getting hot enough. Time the brew: a full pot should take about 10-12 minutes. If it's much faster, the heater or thermostat is failing and not allowing proper extraction.
Heads Up
Using pre-ground coffee in the filter basket bypasses the grinder but requires a much finer 'espresso' grind from the store. Standard drip grind will flow too fast and taste weak.