COMFEE' Glass Electric Kettle: problems, parts and running costs
Checked: 2026-11-02
Summary
The kettle has recurring issues with limescale buildup and high energy consumption, costing about $20-30 per year in electricity and vinegar. It is a good buy under $20 for a 1.7L borosilicate glass kettle with fast heating.
Common problems and fixes
- Limescale buildup — owners report weekly cleaning needed; the fixed mesh filter in the lid requires manual scrubbing during descaling; warranty does not cover normal mineral deposits [1, 3].
- High energy consumption — independent testing shows 161 Wh per 1.5L boil (above average for the category); no workaround exists except using less water [3].
- Poor heat retention — water cools from 212°F to 200°F within 5 minutes unpowered; pour immediately after boiling for best results [3].
- Flat power cord — the flat cord does not wind neatly in the base storage compartment; manual coiling required [3].
- Dimension discrepancies — different SKUs list varying external dimensions for the same glass carafe; no functional difference [1, 2, 3].
Parts and consumables
- Limescale filter mesh (built into lid) — not sold separately; owners clean it manually during descaling [3].
- White vinegar — $3-4 per gallon for monthly descaling; 0.5L mixed with water left for 1+ hour then boiled [6].
- Glass carafe — not sold separately; available only as complete replacement unit [1, 3].
Yearly running cost
Electricity costs about $20-30 per year based on 1.5L boils (161 Wh each) and daily use. Add $3-4 annually for white vinegar descaling. Total running cost: $23-34 per year.
When it is a good buy
- < $20: Excellent value for a 1.7L borosilicate glass kettle with 1500W heating and safety cutoffs [1, 5].
- $20 – $30: Fair to good value, matching independent test scores of 7.2 to 7.5 where quiet boiling and wide cleaning access offset higher energy use [3, 5].
- > $30: Weak value unless specific aesthetic variants are desired, as basic 1.5L–1.7L glass kettles are widely available at lower prices.