Plastic or chemical taste in coffee, especially on a newer machine.

Safety first: Unplug before cleaning.

Steps:

• Initial cleaning: Wash the water tank, carafe, and removable parts with warm soapy water and rinse thoroughly.
• Flush cycles: Run at least 3–4 full tanks of plain water through the machine (no coffee) to flush internal parts.
• Use proper cleaners: Only use Tefal-approved descalers and avoid scented detergents in any part that contacts water.
• Change water source: Try filtered or bottled water to rule out tap water taste issues.