What Touches Your Water in the Best Electric Kettle

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A kettle does one thing, so the specification that matters is not what it does but what it is made of — specifically, what the boiling water is touching while it does it.

This is where the marketing gets slippery. A kettle sold as stainless steel very often has a plastic spout, a plastic inner lid and a clear plastic water-level window, and those are precisely the parts sitting in or above boiling water. A kettle sold as BPA-free is still a plastic kettle; BPA-free means one particular compound is absent, not that plastic contact has been removed.

Of the ten kettles below, exactly two state that every water-contact surface — spout and lid included — is 304 stainless steel. One of them replaces the usual plastic water window with an internal steel gauge, which is the detail that shows the claim is meant literally.

Four use borosilicate glass, which avoids the question differently and lets you see the water. One is frankly a plastic kettle at sixteen dollars, and we have included it and said so, because for plenty of buyers that is the right answer.

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At a Glance

Ten Electric Kettles Compared

Capacity and what the boiling water actually touches, with wattage and boil time shown only where a manufacturer states them.

#	Model	Capacity	Water Contact	Power / Speed	Feature	Standout	Main Drawback	Check Price
1	Cosori CEK-S152	1.7 L	304 stainless	No plastic contact	Steel water level indicator	Names every water-contact part as steel	No wattage published	View on Amazon
2	EK-170 Double Wall	1.7 L	304 stainless	Double wall, anti-scald	1.7 L in 6 minutes	Cool outer wall plus full steel water contact	Generic brand with no record	View on Amazon
3	SUSTEAS 1309BT	1.7 L	304 stainless interior	Built-in thermometer	Analogue temperature gauge	Only kettle here that shows the water temperature	Price not shown on listing	View on Amazon
4	Hazel Quinn SH005	1 L	304 stainless	800 W, 2–3 min	Plastic-free taste claim	Fastest stated boil for its size	800 W is the lowest here	View on Amazon
5	Cuisinart Soho CK-10TRES	1 L	Stainless interior	Double wall, one touch	Established brand	Double-wall steel interior from a known name	Body material listed as plastic	View on Amazon
6	OVENTE KG83B	1.5 L	Borosilicate glass	Glass and stainless	See the water as it boils	Borosilicate glass rather than plain glass	Glass shows limescale clearly	View on Amazon
7	Hamilton Beach 40930	1 L	Glass, BPA-free	1500 W	Cord-free serving	1500 W into just 1 litre	BPA-free still means plastic parts	View on Amazon
8	Chefman RJ11 Infuser	1 L	Borosilicate glass	1500 W	Removable infuser	Steeps loose leaf in the kettle	1 litre is about four cups	View on Amazon
9	Megawise CX-817	1.8 L	Borosilicate glass	Not published	Auto shut-off	Biggest capacity in the roundup	Largest kettle takes longest to boil	View on Amazon
10	OVENTE KP72B	1.7 L	Plastic	1100 W	BPA-free plastic	Full 1.7 litres for under sixteen dollars	Plastic body and water contact	View on Amazon

Specifications and ratings are taken from each manufacturer’s Amazon listing as displayed on 20 August 2026 and may change. Five of these ten publish no wattage, so boil speed cannot be compared across the whole group. Two listings state capacity as a weight in the specification table — SUSTEAS as 3.6 pounds and Hazel Quinn as 2.1 pounds — and the volume figures in their titles are the usable ones. The SUSTEAS listing did not display a price when checked. “BPA-free” and “stainless steel interior” are reproduced as written; only Cosori and the EK-170 state that every water-contact surface including spout and lid is steel.

Scroll the table sideways to see every column

How We Chose These Electric Kettles

We researched current listings, compared manufacturer specifications and documentation, and examined recurring patterns in customer feedback. We did not carry out hands-on testing, and nothing below is presented as measured performance data.

• What the water actually touches — spout, inner lid and water gauge are commonly plastic even on steel kettles
• Whether the claim is specific or vague — “stainless steel interior” is not the same as “every water-contact surface is steel”
• Capacity against household size — 1 litre suits one or two; 1.7 litres suits a family; half-filling a big kettle wastes time
• Wattage relative to capacity — 1500 W into 1 litre is a very different kettle from 1500 W into 1.7
• Any stated boil time — only two listings quantify it
• Useful extras that are not gimmicks — a thermometer, an infuser and a cool-touch wall each solve a real problem

The 10 Best Electric Kettles, Reviewed

Stainless, Glass or Plastic?

The only decision that really separates these kettles, and the one the listings describe least precisely.

The important nuance is inside the stainless column. Only Cosori and the EK-170 state that the spout and inner lid are steel too; the Cuisinart says “stainless steel interior” while listing its body material as plastic. If plastic contact is your reason for buying steel, read for the specific claim rather than the word stainless. Glass sidesteps most of it and shows you the limescale, which is either useful or annoying depending on your water.

One Litre or 1.7?

Capacity should match the household, because heating water you do not use is the main inefficiency in this category.

Look at the watts-per-litre row. The 1 litre kettles here are far more intensely heated — Hamilton Beach puts 1500 watts into a single litre, while the 1.7 litre models spread the same or less across nearly twice the water. If you mostly make one or two cups, a 1 litre kettle is not a compromise; it is the faster choice. Buying 1.7 litres and half-filling it is the common mistake.

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What the Materials Actually Mean

Full 304 stainless, water contact confirmed — Cosori CEK-S152, EK-170. Both state that the spout and inner lid are steel as well as the body. Cosori goes further and uses an internal steel water gauge rather than the usual plastic window. These are the only two kettles here where the claim is specific enough to rely on.

Stainless interior, rest unstated — SUSTEAS, Hazel Quinn, Cuisinart. All three name 304 stainless for the interior. None states what the spout and lid are made of, and Cuisinart’s specification table lists the overall material as plastic. Better than a plastic kettle, less certain than the two above.

Borosilicate glass — OVENTE KG83B, Hamilton Beach 40930, Chefman, Megawise. Glass is inert and shows you the water. Borosilicate specifically resists thermal shock, which matters in something going from cold to boiling twice a day. Lids and handles are usually still plastic, so this is not a plastic-free solution either — but the water sits in glass.

BPA-free plastic — OVENTE KP72B. Sixteen dollars, 1.7 litres, 4.4 rating. BPA-free means bisphenol A specifically is absent. It does not mean the water is not touching plastic, and no listing claims otherwise.

A note on wattage. Five of these ten publish none at all, which for a device whose only job is heating water is a strange omission. Where it is published, judge it against capacity rather than alone: 1500 watts into 1 litre and 1500 watts into 1.7 litres are not the same kettle.

How to Choose an Electric Kettle

Read Past the Word Stainless

A stainless body tells you nothing about the spout, the inner lid or the water-level window, which are commonly plastic. Look for a listing that names those parts. Two kettles here do; the rest describe an interior and stop.

Treat BPA-Free as a Narrow Claim

It means one compound is absent. It does not mean plastic-free, and the two are routinely conflated in this category. If avoiding plastic contact is why you are shopping, BPA-free plastic does not achieve it.

Size the Kettle to What You Actually Boil

One litre is about four cups and suits one or two people; 1.7 litres suits a family or filling more than one pot. Half-filling a large kettle every day wastes both time and electricity, and the 1 litre models here are more intensely heated anyway.

Judge Wattage Against Capacity

Hamilton Beach puts 1500 watts into 1 litre; the 1.7 litre kettles spread the same or less across nearly twice the volume. Watts per litre is the comparable figure, and five listings here publish no wattage at all.

Decide Whether You Want to See the Water

Glass shows the level, the cleanliness and the limescale. In a hard water area that means descaling on sight, which some people prefer and others find tiresome. Steel hides all three until you look inside.

Consider a Thermometer Before a Variable-Temperature Kettle

Green and white teas are spoiled by boiling water. A variable-temperature kettle solves this properly and costs considerably more. A kettle with a thermometer, like the SUSTEAS here, gives you most of the benefit for a fraction of the price — you wait and watch rather than setting a target.

Common Electric Kettle Buying Mistakes

• Reading “stainless steel” as plastic-free. The spout, inner lid and water window are commonly plastic on steel kettles.
• Reading “BPA-free” as plastic-free. It means one compound is absent, nothing more.
• Buying 1.7 litres and half-filling it. A 1 litre kettle is faster and cheaper to run if you make one or two cups.
• Comparing wattage without capacity. 1500 W into 1 litre and into 1.7 litres are different kettles.
• Pouring boiling water on green tea. It scorches the leaf; around 175°F is the target.
• Never descaling. Scale slows boiling and shortens element life; glass kettles at least make it obvious.
• Assuming a capacity figure in pounds is a mistake worth ignoring. Two listings here state weight where volume should be — check the title figure instead.

Which Electric Kettle Should You Buy?

Buy the Cosori CEK-S152 if you want no plastic in contact with boiling water. It is the only kettle here that names the spout, inner lid and water gauge and confirms all are steel.

Buy the EK-170 Double Wall if you want the same full-steel water contact plus a body that stays cool — the better choice with children in the kitchen.

Buy the SUSTEAS if you drink green or white tea. A thermometer gives most of the benefit of a variable-temperature kettle for far less.

Buy the OVENTE KG83B if you want to see the water. Borosilicate glass, 1.5 litres, from the most established glass kettle line here.

Buy the Hamilton Beach 40930 if you want the fastest boil for one or two cups — 1500 watts into a single litre.

Buy the Chefman RJ11 if you drink loose-leaf tea and would rather not own a teapot.

Buy the OVENTE KP72B if plastic contact genuinely does not concern you. It is a full 1.7 litre kettle for sixteen dollars and there is no other reason to avoid it.

Frequently Asked Questions

Final Verdict

Kettles are simple enough that the only real question is what the boiling water is touching, and that is exactly the question the listings answer least clearly. “Stainless steel” describes a body. “BPA-free” describes one absent compound. Neither tells you about the spout, the inner lid or the plastic strip you read the water level through.

So read for the specific claim. Two kettles here name every water-contact part and confirm it is steel; four put the water in borosilicate glass; one is honestly a plastic kettle at sixteen dollars. Then size it to what you actually boil, because a 1 litre kettle heated by 1500 watts is faster than a 1.7 litre one on the same element, and half-filling a big kettle is the most common daily waste in this category.

Do that and the choice is straightforward — and considerably cheaper than the marketing implies.