Tefal Includeo KI533840 Kettle Review: Small, Light and Easy to Use
Tefal says it designed the Includeo with disabled people taking part from the start: a big lid button, a big switch, big water windows and a light body. Expert Reviews tested it and agrees on all of that. Buyers rate it highly. The catch is that it holds only one litre and boils more slowly than a 3 kW kettle. Whether that matters depends on who is filling it.
Where the reviews line up
We used three sources. Expert Reviews tested the kettle with a stopwatch, a sound meter and a thermometer. The buyer ratings at Currys, Very and Tefal’s own shop come to several hundred owners between them. Coolblue, a retailer in Belgium and Germany, adds buyers’ written comments on the European version.
All three agree on the main point. It is easy to use. The lid opens with one large button, the switch is big, and the water windows on both sides are clear and marked in cups as well as litres. Expert Reviews weighed it at 720 g empty and called it light and comfortable to hold. Coolblue buyers say the same, and one mentions being able to read the water level from either side. The removable limescale filter lifts out and rinses clean, and a replacement costs £2.70 from Tefal.
The sources also agree on what it does not do. It holds one litre, which is about four mugs. It is not fast: Expert Reviews timed a full litre at 3 min 7 s, about 30 seconds longer than a 3 kW kettle. Coolblue lists 164 seconds but does not say how it got that figure. Which?’s published listing says it has no reduced-temperature settings, and Which? lists no boil-dry protection either. Expert Reviews also measured the outside of the body at 60°C at the boil, so it is not cool to the touch.
Who it suits: anyone who finds a full 1.7-litre kettle heavy or awkward, including people with weak grip, poor eyesight or arthritis. It also suits a one- or two-person home that wants a small, cheap kettle that is easy to read. If you boil for a family, buy a bigger and faster kettle.
The three reviews this summary is built from
- Expert ReviewsHands-on test with boil time, energy use, noise and surface temperature measured. Published 10 October 2025.
- Currys, Very & Tefal4.6/5 from 309 (Currys Ireland), 4.6/5 from 65 (Very), 4.5/5 from 114 (Tefal shop), all checked 9 Oct 2026.
- Coolblue9.2/10 from 31 buyer reviews of the European KI5338, with written comments and a star breakdown.
Before the review: there is no 1.7-litre Includeo
You may see the Includeo described as a 1.7-litre kettle. We could not find a 1.7-litre version anywhere. Tefal UK sells one Includeo kettle, the KI533840, rated at 1 litre. The KI5338 and KI533811 sold in Europe are the same kettle with a different plug. Tefal UK’s shop showed it in stock on 9 October 2026 and so did Very, so it is still on sale new here. Coolblue in Germany has stopped selling it, so check the code on the box if you buy from a European seller.
Specification at a glance
| Spec | Figure | Confidence |
|---|---|---|
| Capacity | 1 litre, about four cups · 0.995 l on Which?’s listing | Tefal UK; Which? lists 0.995 l |
| Power | 2,400 W · “2000-2400 W” in the same Tefal table | Tefal UK, Which? and Coolblue give the range |
| Boil time, 1 litre | 3 min 7 s measured · 164 s listed | Expert Reviews timed it · Coolblue does not say how it got its figure |
| Rapid boil claim | None. Tefal’s spec says “Rapid Boil Function: No” | Tefal UK shop |
| Minimum fill | One cup (250 ml) marked · 258 ml | Expert Reviews · Which? spec table |
| Weight, empty | 720 g (Expert Reviews) · 0.731 kg (Which?) · 0.98 kg (Tefal shop, Currys Ireland, Coolblue) | Sources disagree; the higher figure probably includes the base |
| Dimensions | 221 × 190 × 205 mm (L × W × H) · 16.6 × 23.2 × 20 cm (W × D × H) | Tefal shop and Very · Expert Reviews |
| Energy per litre | 0.115 kWh | Expert Reviews, measured |
| Cost per boil | About 3.0p for a full litre · about 0.8p for one cup | Our sum: 0.115 kWh at the 26.32p/kWh price cap; the one-cup figure scales that down |
| Noise | 50.7 dB boiling 1 litre, 55.7 dB switch click (at 1 m) | Expert Reviews, measured |
| Body temperature | 60°C at the boil, 66°C after five minutes | Expert Reviews, measured |
| Limescale filter | Removable; replacement £2.70 (part SS-7235005004) | Tefal UK |
| Cord | 1 m listed · 0.82 m measured by one owner | Coolblue spec · Coolblue buyer review |
| Guarantee | 2 years, plus Tefal’s 15-year repairability promise on spare parts | Tefal UK warranty page, Expert Reviews, Currys Ireland |
| Price | £42.99 at Tefal (was £53.99) · £49 at Very | Both checked 9 October 2026. No separate RRP published |
Expert Reviews
Who they are: Rachel Ogden is a freelance journalist writing for Expert Reviews who has covered small and large appliances, interiors and home tech since 2007, with hundreds of kitchen appliances tested — a long record that makes her measured figures worth weighting.
This is the most useful review because it has numbers. A full litre from cold took 3 minutes 7 seconds, about half a minute longer than a 3 kW kettle. It used 0.115 kWh per litre. At the 26.32p price cap that works out at about 3p a boil (our sum). Water was still 94°C after five minutes and 89°C after ten. The boil peaked at 50.7 dB at one metre and the switch click reached 55.7 dB. Ogden calls both modest. The weak point she found is the outside of the body, which reached 60°C at the boil and 66°C five minutes later. A child or anyone with poor sensation could burn themselves on that.
Ogden’s verdict follows the design brief. It has clear, well-marked windows, a big switch and an easy lid. She found it light to lift and good to pour from, and says it would suit a household with more than one generation. Against it she lists the small capacity, the slower boil, the single black colour and no indicator lights. Tefal’s own Includeo page says the on/off button does have a light, so the two sources disagree there. We print both claims and could not settle which is right. For comparison, Trusted Reviews timed the 1.7-litre Smeg KLF03 boiling a litre in 2 min 18 s. That kettle is much quicker, but also much heavier.
Watch: Tefal Includeo Bouilloire électrique
A French-language video of the European version of the same kettle (French name: bouilloire). Useful for seeing the lid button and water windows in use.
Watch on YouTube ↗ Independent YouTube video — not made by or for Shopbam.Currys, Very and Tefal’s shop
Who they are: Currys’ ratings are invited from buyers and moderated by Feefo with no incentives; Very’s are written by its shoppers under no policy we could find; Tefal’s shop is the manufacturer’s own page — all are customer satisfaction scores, not tests.
The three sets of ratings are for the same UK-plug KI533840 and come to nearly 500 between them. They are very consistent, between 4.5 and 4.6 out of 5 at every shop. Keep in mind where they come from. These are ratings hosted by the shops that sell the kettle, and one of them is Tefal’s own shop. Currys is the Irish site, as the UK Currys and Argos pages did not show us a review count. None of the three pages showed us any written reviews, so all this tells you is that most owners are happy. It does not tell you why.
These pages are more useful for price. Tefal’s shop had it at £42.99, down from £53.99, and Very had it at £49, both on 9 October 2026. Tefal publishes no separate RRP. Expert Reviews tested it at £50. That puts it level with the 3 kW, 1.7-litre Russell Hobbs Inspire, which was £48.99 at Russell Hobbs when we checked earlier this month. The Inspire is quicker and bigger. The Includeo is lighter and easier to handle.
Watch: TEFAL |KET INCLUDEO : Conçu pour vous - pour tous !
A short French promotional film for the range (the title means “Designed for you, for everyone”). Manufacturer-style marketing, not a review, but it shows the design features the buyer ratings reward.
Watch on YouTube ↗ Independent YouTube video — not made by or for Shopbam.Coolblue
Who they are: Coolblue, an online electronics retailer in the Netherlands, Belgium and Germany, only invites reviews from people who bought the product, has an employee read each one before it appears, publishes negative reviews and bars rewarded ones, which makes it solid buyer evidence.
This is a small sample. We include it because it is the only place where we could read owners’ actual comments. They are also on the same retailer’s page that shows how the scores are spread. The praise matches Expert Reviews. Owners say it feels solid, they can see the water level from both sides, it is light and easy to handle with a non-slip handle, and the filter rinses clean. One owner wrote “Price ok for so much quality!”
The one critical review is about the cord. A 2021 owner rated it 5/10 because the cord measured 0.82 m, not the 1 m Coolblue listed, and you cannot open the base to fit a longer one. Tefal does not publish a cord length and its FAQ only says there is no cord storage. If your socket is not right next to where the kettle will sit, measure the gap first. Coolblue has now stopped selling it in Germany. That does not affect the UK model, which was on sale at Tefal and Very when we checked.
Watch: TEFAL Includeo Wasserkocher KI5338
A German-language video of the KI5338, the European version Coolblue sold (Wasserkocher is German for kettle). Same body and controls as the UK KI533840; only the plug differs.
Watch on YouTube ↗ Independent YouTube video — not made by or for Shopbam.Strengths and weak points
What holds up
- Light: 720–731 g empty as measured, so a full litre is still easy to lift.
- One-button lid, a large switch and a wide, non-slip handle.
- Large water windows on both sides, marked in cups and litres.
- Minimum fill of about one cup, so you need not boil more water than you will drink.
- Removable filter that rinses clean; a replacement is £2.70.
- Quiet in the Expert Reviews test, and about 3p a litre to run (our sum).
- Two-year guarantee, and Tefal promises spare parts for 15 years.
What people complain about
- One litre is about four mugs, so it is too small for a family.
- Slower than 3 kW kettles: 3 min 7 s per litre in Expert Reviews’ test.
- The outside reached 60–66°C in testing, so it is not cool-touch.
- No temperature settings, and Which? lists no boil-dry protection.
- Short cord: one owner measured 0.82 m.
- Black only.
Who it actually suits
Buy it if lifting, gripping or reading a kettle is hard for you or someone you are buying for. That includes arthritis, weak wrists, poor eyesight or simply finding a full 1.7-litre kettle heavy. It also suits a one- or two-person home or a small kitchen where you mostly boil a mug or two. For under £50 it does that one job better than most. If you want a matching toaster, Tefal makes one in the same range. Our Dualit Lite review covers a sturdier alternative.
Look elsewhere if you boil for four or more, want a full jug quickly, or need set temperatures for green tea or formula. A 3 kW, 1.7-litre kettle such as the Russell Hobbs Inspire will be quicker. If you drink mainly coffee, a pod machine such as the Nespresso Vertuo Pop heats its own water and you may not need a kettle as often.
What we could not check
- Which?’s verdict. Which? lists the KI533840, but its score, Best Buy status and test results are behind a paywall and did not show on the page we checked. The figures we use from Which? are the public ones: 258 ml minimum fill, 0.731 kg, 0.995 l and an annual running cost of £16.71. We do not know what energy price that annual cost uses. Which? last checked it in July 2022.
- Indicator light. Tefal says the on/off button lights up. Expert Reviews lists “no indicator lights” as a weak point. We could not settle which is right.
- Boil-dry and auto switch-off. Which?’s listing marks both as absent. That is unusual for a kettle sold in the UK, and the Tefal pages we read neither confirm nor deny it. Check the manual before relying on it either way.
- Coolblue’s 164-second boil time. Coolblue does not say whether that is for a full litre, at what voltage, or whether it timed it at all. Expert Reviews measured 3 min 7 s.
- Weight. The 0.98 kg on Tefal’s and Currys’ pages may be the kettle with its base, or a packed weight. No source says.
- Written UK reviews. Currys, Very and Tefal show scores and counts but did not show us any review text. Argos and Currys UK did not show a count at all. We found no forum or Reddit discussion of this kettle.
- The cost-per-boil figures are our sums from Expert Reviews’ measured 0.115 kWh per litre at 26.32p/kWh. The one-cup figure scales that down in proportion, but small boils lose a larger share of heat, so it is probably a slight underestimate.
- The videos were confirmed by the watch URL and title appearing in two separate search listings. We did not open them. All three are in French or German and show the European version, as we found no English-language video of this kettle.
Sources last checked 9 October 2026. Prices change often. Check the price and the model code (KI533840) on the listing before you order.