Best Plastic-Free Kettles UK (2026): Electric and Stovetop

Our picks at a glance

Prices checked on UK retailer pages in October 2026.

How we chose

We looked only at what touches the water: the body, the inside of the lid, the spout filter, the water-level window and any seals. The outer handle and the electric base do not touch the water, so we ignored them. We read each UK listing or brand materials page and excluded kettles whose "stainless" label hid a plastic lid lining, a plastic filter or a plastic window. Where a seal or part was not specified, we say so. No kettle here has independent migration testing, so the best grade is "moderate": metal and enamel are well-understood materials, but no product-level lab data exists.

Where is the plastic in a "stainless steel" kettle?

Most electric kettles sold as stainless steel still have plastic in contact with hot water. The usual places are:

• The water-level window, a clear plastic strip on the side.
• The inside of the lid, often a plastic liner even when the outside is metal.
• The limescale filter in the spout, frequently a plastic mesh.
• Seals and gaskets around the lid, usually silicone.

Glass electric kettles have the same problem in a different place: the glass jug normally sits in a plastic collar at the base and has a plastic lid. That is why we have not picked a glass electric kettle.

Does boiling water in plastic matter?

Heat and repeated use increase the shedding of microplastics from polypropylene, a common kettle and baby bottle plastic. A Nature Food study found polypropylene infant feeding bottles released up to 16.2 million particles per litre during formula preparation, with sterilisation and hot water significantly increasing release (Li et al., 2020). The authors cite earlier work on particles from plastic kettles, but large peer-reviewed kettle studies are still thin, and the health effects of swallowed microplastics are not yet established.

Metal is not entirely inert either. Stainless steel contains nickel and chromium, and EFSA has assessed nickel in food and drinking water and set a tolerable daily intake for it (EFSA, 2020). Metal release from new stainless items tends to be highest in the first uses, and soft or acidic water increases it. Practical step: boil and discard two or three full kettles before first use, and descale regularly so the element and body stay clean.

All of these kettles are covered by the same UK rule as any food-contact item: they must not transfer substances into food or drink in amounts that could endanger health (Regulation (EC) 1935/2004; SI 2012/2619).

The best plastic-free kettles in the UK

Cosori Plastic-Free Water Contact Kettle 1.7L: best overall electric

Cosori states every water-contact part, including the spout, inner lid and filter, is 304 stainless steel, and the fill markings are etched inside instead of a plastic window. It is a fast 3kW kettle for around £33. Caveat: the lid seal material is not listed, and owners consistently describe it as loud.

Saki Luna Electric Kettle 1.75L: premium with temperature control

For tea and coffee at set temperatures, Saki says the reservoir, spout and underside of the lid are 304 stainless steel. Caveat: Saki's own materials page confirms a silicone ring seals the lid edge, so "no silicone contact" on the UK listing is not quite right. It is also expensive.

Le Creuset Kone Stovetop Kettle 1.6L: best enamel stovetop

The body and lid are enamelled steel (a glass layer fused onto metal), and it works on gas, electric and induction hobs. Caveat: the handle trim is plastic, the whistle material is not stated, and chipped enamel exposes steel that can rust.

Bresor Polished Stovetop Kettle: best steel stovetop

An 18/10 stainless steel stovetop kettle with a thermic base for even heating, chosen by durability-focused UK retailer Buy Me Once. Caveat: the handle and whistle materials are not listed, and it is slower than an electric kettle.

La Cafetière Stainless Steel Whistling Kettle 1.3L: budget pick

The cheapest route to boiling water without plastic touching it: a plain steel stovetop kettle that works on gas and induction. Caveat: the steel grade is not stated, the handle appears to be plastic, and 1.3 litres is small.

ASCOT Stainless Steel Electric Kettle 1.5L: also consider

The listing states a 304 stainless interior, inner lid and spout filter. Caveat: the listing contradicts itself on wattage, and the brand has no UK site we could check, so we rate it "limited".

Electric or stovetop: which is better for lower plastic?

Stovetop kettles are the simplest way to remove plastic from the water path. Electric models with all-steel interiors are now available at everyday prices, so you no longer need a hob kettle to avoid plastic.

Can I reduce plastic contact with the kettle I already own?

You do not have to replace a working kettle to cut exposure. Boil only the water you need and pour it straight away, rather than leaving water to sit against plastic parts. Descale regularly with citric acid or vinegar, then boil and discard one full kettle of fresh water. If the inside of the lid, the filter or the window is cracked, cloudy or brittle, that is a good moment to replace it, ideally with a model that has a steel water path. When you do replace it, recycle the old kettle at a household waste centre as electrical waste.

What to avoid

• "BPA-free" as the only claim. It tells you the plastic is not polycarbonate, not that there is no plastic.
• External water windows on otherwise stainless kettles.
• Plastic mesh filters and lids with plastic undersides.
• Glass kettles marketed as plastic-free without a full materials list; check the lid and base collar.
• Leaving water to stand in any kettle for long periods. Empty and refill instead.

Bottom line

For most people the Cosori 1.7L is the best-value way to get a steel water path in an electric kettle. If you want temperature control, the Saki Luna is the metal-interior option, with a silicone lid ring. If you are happy to boil on the hob, a steel or enamelled stovetop kettle from La Cafetière, Bresor or Le Creuset removes plastic from the water path entirely. Whatever you choose, run a few boils before first use and descale regularly.