Coffee maker makes loud gurgling or popping noises during brewing.

Safety first: Keep hands away from steam vents during operation. Unplug before any internal inspection.

• Fill reservoir properly: Ensure water is above the minimum fill line before brewing.
• Run a water-only cycle: Run one or two full cycles with plain water to purge air from the system.
• Descale: Use a vinegar and water solution to remove scale that can cause noisy boiling.
• Check tubing (advanced): Inspect internal hoses for loose connections that might draw in air. Reseat and clamp as needed.