Glass Tea Kettles: Stovetop and Electric Models Compared

Searchers who type “glass tea kettle” are looking for two different products. One is an electric glass kettle: a borosilicate carafe on a powered base. The other is a stovetop glass kettle or teapot that sits directly on a burner. They are made and used differently, so this page keeps them in separate sections.

The short answer for electric: the Cosori 1.7L glass kettle is the best-documented budget pick, because Cosori says water touches only glass and stainless steel. If you want temperature presets and a named glass, look at the Breville IQ Kettle Pure. For the stove, the best-documented option we found is a Simax teapot: the maker publishes its glass type, says the glass is lead- and cadmium-free, and makes it in the Czech Republic. One warning up front: glass does not work on an induction cooktop by itself, and none of the glass stovetop kettles we found say they are induction-ready.

Instead of ranking on looks, this page answers the questions competing pages skip: what type of glass, what else the water touches, and what stove each kettle can and cannot go on.

In this guide

1. Quick comparison
2. How we researched this
3. What glass kettles are made of
4. Electric glass kettles: what is around the glass
5. Cosori GK172-CO 1.7L glass kettle
6. Breville IQ Kettle Pure (BKE830XL)
7. Ovente KG83B 1.5L glass kettle
8. Bodum Bistro double-wall electric kettle
9. Stovetop glass kettles: which stove can you use?
10. Simax glass teapots
11. Ovente FGF40T glass teapot
12. Buying guide
13. FAQs
14. Bottom line
15. Sources

Quick comparison

How we researched this

We have not handled any of these kettles. This page compares manufacturer product pages, instruction manuals and retailer listings, and it says “not published” wherever a maker leaves a detail out. We looked for what the glass is, what else touches the water, which stoves a stovetop model can go on, and what the warranty covers. Prices change too often to list, so we show none. Availability was checked against each maker’s own US page, but check current stock before you buy.

What glass kettles are made of

Almost every glass kettle is borosilicate glass. Ordinary bottles and windows are soda-lime glass, which expands more when heated and cracks more easily when hot water hits a cold wall. Borosilicate expands far less, which is why it is used for lab glassware and kettles. That is the “thermal shock” resistance makers talk about, and it is what lets a carafe go from cold tap water to boiling.

Two caveats. First, “borosilicate” on a product page is a claim, not a test result. The exception is Simax, which says its glass is “Type 3.3” borosilicate meeting ISO 3585 and that its products are lead- and cadmium-free. Second, resistance to thermal shock from water is not the same as being safe on a hot burner. Electric kettle carafes are designed to be heated from a base, not to sit on a flame. Never put an electric kettle’s glass jug on a stove; the Breville manual even says not to place the kettle on or near a hot gas burner or electric element.

Electric glass kettles: what is around the glass

The glass carafe is the easy part. The lid, spout and joint decide whether hot water really touches only glass. Our no-plastic electric kettle guide has a fuller part-by-part table for stainless models. This one is for glass.

What the table shows: only Cosori says the lid underside is stainless. The others are silent on it or have plastic near the water. Breville states that “all parts that come into contact with water are BPA free”. That implies some water-contact parts are plastic, though the manual does not say which. Bodum’s double-wall design puts plastic on the outside, which does not touch water, but the maker’s page does not describe the lid. And nobody says what seals the glass to the metal base, a gasket that sits in the water for the life of the kettle.

For a plain lower-cost kettle, Cosori and Ovente are similar on paper. The differences are Cosori’s stated stainless lid liner and Ovente’s silence on it.

Cosori GK172-CO 1.7L glass kettle

Who it suits: anyone who wants glass and steel only, at a low price band ($).

• 1.7 L (about 7 cups), wide opening for filling and cleaning
• Borosilicate glass carafe, stainless inner lid and stainless filter, per Cosori
• Auto shut-off and boil-dry protection; 2-year warranty

Good:

• The most complete materials statement of the budget glass kettles
• Wide mouth makes scale easier to reach

Watch out for:

• Country of manufacture and the base seal are not published
• No temperature control

Search for it on Amazon

Breville IQ Kettle Pure (BKE830XL)

Who it suits: tea drinkers who want presets (175, 195, 200, 205 and 212 F, per Breville) and a named glass ($$$).

• 1.7 L (7 cups), 1500 W concealed element
• German SCHOTT glass jug, per the manual; the product page calls it Duraglass
• Keep-warm, auto shut-off, boil-dry protection, removable scale filter

Good:

• A named glass supplier and a filter that comes out for cleaning
• A manual that explains scale and descaling

Watch out for:

• Lid and filter materials are not published
• The manual says to avoid alkaline cleaners, steel wool and abrasives
• Cost is well above the budget models

Check price on Amazon

Ovente KG83B 1.5L glass kettle

Who it suits: a cheap, simple glass kettle ($).

• 1.5 L, 1100 W at 120 V; heat-tempered borosilicate glass with a stainless steel base
• Removable, washable spout filter, blue LED, boil-dry protection
• 2-year limited warranty; proof of purchase and registration required for claims

Good:

• Low cost
• The manual gives a vinegar descaling recipe

Watch out for:

• Lid material and origin are not published
• The warranty excludes accidents, which is how most glass breaks

Check price on Amazon

Bodum Bistro double-wall electric kettle

Who it suits: anyone who wants a glass kettle that is cooler on the outside and has five presets ($$).

• 1.1 L (37 oz), presets from 140 to 212 F and a 30-minute keep-warm, per listings of the Bodum product
• Borosilicate inner glass with a plastic outer wall, per retailer listings
• Removable spout filter

Good:

• The outer wall keeps the surface cooler

Watch out for:

• The outer shell is plastic
• Bodum’s US page would not load text for us, so lid and seal materials are unconfirmed; check current availability

The Amazon listing for this kettle showed “currently unavailable”, so we have no buy link. Check Bodum US for stock.

Stovetop glass kettles: which stove can you use?

This is the section that matters most if you want to put glass on a burner. Only a few products are actually built for it, and the published information is thin. The table records what we could confirm.

Induction, plainly. An induction cooktop heats magnetic metal. Glass is not magnetic, so a glass kettle on an induction hob does nothing. The only routes are a magnetic metal disc between the burner and the glass, or a kettle that ships with its own magnetic base. We found no glass stovetop kettle that says it includes one. See our guide to induction converter discs, and note that a disc adds a very hot metal plate under glass, so check that the maker allows it before you try. If induction is your only heat source, a steel kettle is the safer route; our induction and gas kettle guide covers those.

Glass-top and electric coil. The makers we read do not publish guidance for smooth glass-ceramic tops, which have their own heat limits. If you cook on one, read our glass-top stove cookware guide and confirm with the kettle maker.

Simax glass teapots

Who it suits: gas or electric stove users who want the best-documented borosilicate ($$).

• Sizes of 1, 1.5 and 2.5 quarts; some come with a glass or metal-mesh infuser
• Type 3.3 borosilicate to ISO 3585, made in the Czech Republic, per Simax
• Simax says the glass withstands thermal shock up to 300 C and is lead- and cadmium-free
• Simax states a 10-year warranty across its product series; read the terms for what counts as breakage

Good:

• Published glass standard, lead and cadmium claim, and origin

Watch out for:

• The larger model has a plastic lid and handle, which limits how close it can sit to a flame
• Induction and glass-top use are not stated for the teapots, and we could not read Simax’s care instructions, so check the box insert

Check price on Amazon

Ovente FGF40T glass teapot

Who it suits: a smaller stovetop pot with a steel lid and infuser ($).

• 40 oz, borosilicate glass, 304 stainless steel lid and removable infuser
• Stove, freezer and dishwasher safe, per Ovente; 2-year warranty

Watch out for:

• Ovente does not say which burner types it suits, gives no temperature limits, and does not state where it is made

Check price at Ovente.

Buying guide

1. Decide electric or stovetop first

Electric glass kettles boil faster, shut off on their own and let you see the boil. Stovetop glass pots are slower, put the glass in direct contact with heat and are harder to find with good documentation. If you can, choose electric.

2. Check the lid and filter, not just the glass

The carafe is borosilicate almost everywhere. The lid underside, filter frame and seals are where kettles differ. If plastic contact matters to you, only buy a model whose maker says what the lid is made of.

3. Know what “lead-free” does and does not tell you

Plain clear borosilicate is the low-risk case, but only Simax makes an explicit lead and cadmium statement for its glass among the makers we read. Lead and cadmium concerns are mainly about colored or decorated glass and glazes. See our lead-free mugs guide for how these claims are usually backed.

4. Expect to see scale

Clear glass shows limescale. The Breville manual describes lime scale as white or rusty build-up on the kettle floor, and notes a second type (phosphate scale) that clouds the water rather than showing on the glass. In hard-water areas, descale regularly with vinegar and water as the manuals describe, and avoid steel wool and abrasive cleaners.

5. Breakage and warranty

Glass kettles are covered for defects, not drops. Ovente excludes abuse, misuse and accidents, and Cosori and Ovente give two years. Only Simax states a longer warranty (10 years). Retire a chipped or cracked carafe.

6. Capacity and size

The electric glass kettles here run 1.1 to 1.7 L. Stovetop teapots run 40 oz to 2.5 qt.

FAQs

Are glass tea kettles safe?

Borosilicate glass does not react with water, and makers say it leaches nothing into it. The parts to check are the lid, filter and seals, which may be plastic.

What is the best glass electric kettle?

For the clearest materials statement, the Cosori GK172-CO. For temperature presets, the Breville IQ Kettle Pure.

Can you use a glass kettle on a stove?

Only if the maker says it is stovetop safe. An electric kettle’s glass jug is not. Stovetop teapots like Simax and Ovente are sold for the stove; confirm burner type on the box.

Can you use a glass kettle on an induction cooktop?

Not directly. Glass is not magnetic. You would need a compatible induction disc, and few makers approve that. See the converter disc guide.

Can a glass kettle crack?

Borosilicate resists thermal shock but not impacts, chips or a burner used the wrong way. Do not use a chipped or cracked kettle.

Are glass kettles better than stainless steel?

Glass lets you see the water and has no metallic taste. Stainless is tougher and often has better-documented parts. Our no-plastic electric kettle guide covers stainless.

How do I clean scale from a glass kettle?

Boil a vinegar and water solution and let it stand, then rinse and boil clean water. Breville’s manual gives 1 part vinegar to 2 parts water left overnight; Ovente’s guide gives 1 cup water to 3 tablespoons vinegar with a 5 to 8 hour soak.

Where are glass kettles made?

Simax makes its glass in the Czech Republic. Cosori, Breville, Ovente and Bodum do not publish a country of origin on the pages we read.

Bottom line

Choose electric unless you must use the stove. Among electric models, Cosori has the best materials disclosure and Breville the most tea-focused features. On the stove, Simax has the best published standards, but skip glass entirely on induction unless the maker approves a disc.

Sources

• Cosori electric glass tea kettle product page
• Cosori GK172-CO (VeSync)
• Breville the IQ Kettle Pure product page
• Breville BKE830XL instruction book
• Ovente KG83 series product page
• Ovente KG83B user guide
• Ovente FGF40T glass teapot
• Simax Glass Cookware
• Bodum Bistro electric kettle
• Hario USA kettles collection