Writing: Features Introduction Exercise Text 3

Academic Writing

Features of Academic Writing

Introduction – Exercise

Text 3

DESCALING INSTRUCTIONS

  • IN HARD WATER AREAS REGULAR DESCALING IS ESSENTIAL TO KEEP YOUR KETTLE IN GOOD WORKING ORDER.
  • If your kettle switches off before it has boiled it indicates your kettle needs descaling.
  • Descale your kettle using
    • either a proprietary kettle descaler suitable for PLASTIC kettles. Follow manufacturer’s instructions,
    • or white vinegar
      1. Fill the kettle with ½ l of 8° white vinegar.
      2. Leave to soak for 1 hour without boiling.
      3. Empty your kettle and rinse it two or three times with clear water.
    • or citric acid
      1. Boil 0.5 l of water.
      2. Add 25 g of citric acid.
      3. Leave to soak for 15 minutes.
      4. Discard this mixture.
      5. Rinse the kettle with clear water two or three times.
  • Repeat process if needed.
  • Descaling agents for metal kettles, coffee makers or steam irons are unsuitable and will damage your Tefal kettle. Never use metal abrasives to clean the interior.
  • When using powder descaler or citric acid, always add water. Never use in an empty kettle.
  • Always follow the directions for use on the descaler carefully. Rinse the inside well after using a descaler.

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