Hamilton Beach Over-Extraction / Overheating on Warming Plate

Coffee tastes bitter or burnt.

Possible Causes

Too fine grind or too much coffee, Coffee left on warming plate too long, Warming plate thermostat running too hot, Old coffee oils in brew path

How to Fix / Troubleshooting

Safety first: Avoid touching the hot warming plate.

Adjust brewing:

Use a medium grind and avoid overpacking the filter.
Remove coffee from the warming plate within 30–60 minutes or use a thermal carafe model.

Clean thoroughly:

Wash the carafe, lid, and brew basket with hot soapy water to remove old oils.
Run a vinegar cleaning cycle to clear internal residue.

If coffee scorches quickly or the plate seems excessively hot, the warming plate thermostat may be faulty and require replacement.

Repair Difficulty

Easy 2/5

Required Part

Warming Plate Thermostat

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