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Cosori Glass Electric Kettle GK172-CO In-depth Review

Cosori is an acronym for ‘Cooking’ ‘Smarter’ with ‘Originality and Inspiration’, reflecting the brand’s core values from its establishment in 2017. Besides electric kettles, they also manufacture air fryer toaster ovens, pressure cookers, rice cookers, indoor grill, bread makers, food dehydrators, and some beverage-related appliances.

By , , and ·Updated
Tested Using Methodology v1.0
The Cosori Glass Electric Kettle (GK172-CO) on the right and its cardboard box on the left. In the background is a shelf with different electric kettles.

Overall Verdict

A somewhat unique point of the Cosori Original Electric Glass Kettle is zero contact of hot water to plastic. This is due to stainless steel on the under part of the lid in addition to a completely glass carafe. The carafe itself also stands out for its large and unobstructed opening, ideal for easy cleaning and filling.

The icing on the cake is a comparatively fast and very quiet boiling phase. On the other hand, this kettle did consume more energy than its counterparts but overall performance was great.

Things We Like

  • Glass spout
  • Stainless steel under lid
  • Large opening
  • Quiet when boiling
  • Easy to use
  • Light weight

Things We Don’t Like

  • High energy consumption
  • Cord doesn’t fit storage

A somewhat unique point of the Cosori Original Electric Glass Kettle is zero contact of hot water to plastic. This is due to stainless steel on the under part of the lid in addition to a completely glass carafe. The carafe itself also stands out for its large and unobstructed opening, ideal for easy cleaning and filling.

The icing on the cake is a comparatively fast and very quiet boiling phase. On the other hand, this kettle did consume more energy than its counterparts but overall performance was great.

Key Specs

Dimensions
L9.13 x W6.22 x H10.25
Weight
2.4 lbs (1.1 kg)
Material
Glass and BPA-free plastic
Capacity
57.48 fl. oz. (1.7 L)
Power
1500 W
Cord Placement
Base (cordless carafe)

Where to Buy Price at publication $28.65

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Compared to Other Electric Kettles

Ranking by
Showing: 8/17 Items

Analysis and Test Results

7.3 Performance

The Cosori Original Electric Glass Kettle has a pretty fast and very quiet boiling phase, which is something everyone can appreciate. However, heat retention was only average and its energy consumption was significantly higher than many other kettles with the same power draw.

8.0 Boiling Time

1.5 liter of water boiling inside the Cosori Glass Electric Kettle (GK172-CO). The digital timer displays 7 minutes and 1 seconds.
Room Temperature
80°F
Water Volume
1.5 liters
Boiling Time
7m 1s

For the common electric kettles (not goosenecks) like the Cosori, we evaluate the time they take to boil 1.5 liters of water—a middle ground of their capacity. This kettle took 7 minutes and 1 seconds to bring 1.5 liters of room-temperature water (80°F/26.7°C) to boiling point (212°F/100°C).

This result was quite fast and matched other kettle’s with 1500 W of power, so it was worthy of a 8/10 score. Moreover, it matched with the manufacturer’s advertised British STRIX Tech claiming boiling times from 3 to 7 minutes.

5.8 Energy Consumption

The power meter reads the energy consumption of the Cosori Glass Electric Kettle (GK172-CO) to be 161 Wh.
Voltage
114 V
Current
12.12 A
Power
1370 W
Energy Consumption
161 Wh

We used a power meter to measure the Cosori’ total energy consumption. It took 161 Wh to bring 1.5 liters of room temperature water to a rolling boil. Compared to our data from other kettles, this was quite high and deserved only a 5.8/10.

9.0 Noise Level

The Cosori Glass Electric Kettle (GK172-CO) is boiling 1.5 liters of water. The noise meter displays the maximum sound pressure level to be 70.4 dB. The power meter reads 114 V, 12.12 A, 1.37 kW, 0.63 Wh, 50 Hz, and 1.0 PF.
Noise Level
70.4 dB

During boiling, the Cosori’s noise level peaked at 70.4 dB while reaching a rolling simmer, which was much quieter than the CDC’s safe level of exposure to 80 dB for 2 hours. By comparison to many other kettles, this was really quiet and earned a whopping 9/10.

6.5 Keep Warm

On the right is a Thermo Pro two-probe digital thermometer displaying 200°F for both probes. In the middle is the Cosori Glass Electric Kettle (GK172-CO) Keep Warm with 1.5 liters of water and two probes inside. On the right is a digital timer displaying 5 minutes on the countdown.
After 5 Minutes
201°F / 94.5°C

The glass carafe of the Cosori isn’t the best material for heat retention. The kettle also doesn’t have temperature control or a  Keep Warm feature. As a result, after 5 minutes, the temperature dropped from 212°F / 100°C to 201°F / 94.5°C. This was average among our tested kettles and equated to a 6.5/10 according to our data.

7.6 Design

The Cosori Original Electric Glass Kettle has some interesting tweaks to an otherwise standard design. Most notably, its spout is shaped out of the glass carafe and the underside of the lid is stainless steel—meaning absolutely no contact with hot water and plastic.

It has overall good build quality and sports a typical mesh filter, a blue LED ring, a large opening, and a pop-up lid.

In the Box

On the upper left is the box of the Cosori Glass Electric Kettle (GK172-CO). In the middle is the carafe. On the right are two documents. Below the carafe is the power base.
  • One cordless kettle
  • One corded power base
  • One user manual
  • Warranty: 2 years

The Cosori Electric Glass Kettle arrived securely boxed between a styrofoam pad on the top and the bottom. The instruction manual was quite detailed with information on the kettle’s parts, how to use, safeguards, cleaning and maintenance, troubleshooting, and warranty.

Dimensions

The Cosori Glass Electric Kettle (GK172-CO) is 9.13 inches in length, 6.22 inches in width, and 10.25 inches in height.
Length
9.1" (23.2 cm)
Width
6.2" (15.8 cm)
Height
10.3" (26.0 cm)
Weight
2.4 lbs (1.1 kg)

7.0 Carafe

The carafe of the Cosori Glass Electric Kettle (GK172-CO) sitting on top of its power base.
The carafe of the Cosori Glass Electric Kettle (GK172-CO) sitting on top of its power base.
The heating plate with a LED ring around it of the Cosori Glass Electric Kettle (GK172-CO).
The heating plate with a LED ring around it glowing blue of the Cosori Glass Electric Kettle (GK172-CO).
The glass V-shaped spout of the Cosori Glass Electric Kettle (GK172-CO).
Capacity
57.5 fl oz (1.7 L)
Weight
2.1 oz (59 g)
Materials
Borosilicate glass
Spout
V-shaped
Opening Diameter
4.3" (11.0 cm)
LED Ring
Blue
Filter
Removable mesh
Water Level Markings
Yes
Tea Infuser
No

The borosilicate glass carafe holds a maximum of 1.7 L (57.48 fl. oz), which is about 7 cups (+2). It has a large opening, 4.33 inches (11 cm) in diameter, allowing you to comfortably pour in water from your tap or any container (+1).

There are water level markings in the middle of the carafe (+1). The Cosori has  a  V-shaped spout that is shaped out of the glass carafe itself. As a result, the limescale filter doesn’t attach to the spout like other kettles but is positioned by the lid and is undetachable (+1). The filter is screw-on, however, so you can still remove it.

Similar to many other cordless electric kettles, the Cosori’s heating element is positioned inside the bottom of the carafe. There’s a ring of blue LED around the bottom which will illuminate when the kettle’s running, making it easy to spot in the dark (+2).

7.0 Handle

A hand holding the Cosori Glass Electric Kettle (GK172-CO)  by its handle.
Materials
Cool-touch BPA-free plastic
Type
Cool-touch, anti-slip

The cool-touch handle is made of BPA-free plastic (+3). Its design is standard, without an ergonomic contour or anti-slip feature, but feels secure and comfortable on the wrist nonetheless (+4).

8.0 Lid

The pop-up lid of the Cosori Glass Electric Kettle (GK172-CO) opens at an 80° angle and has a mesh filter attached to it.
The pop-up lid of the Cosori Glass Electric Kettle (GK172-CO) opens at an 80° angle and has a mesh filter attached to it.
The lid’s pop-up button of the Cosori Original Electric Glass Kettle (GK172-CO) is located on its handle.
Materials
304 stainless steel
Type
Hinged
Open Mechanism
Push-button

The Cosori has a hinged lid that pop-ups to an 80° angle with a single push of a button on the handle (+4). This angle is wide enough to easily pour in water even with the fixed filter attachment (+2).

The lid has a plastic rim but a stainless steel top and bottom. This means there’s no contact between plastic and hot water, which we know many people will appreciate. However, only the small black area of the lid is cool-to-touch, so you should take care.

Unlike many other electric kettles we’ve tested, this one doesn’t have a silicone band around the circumference. Regardless, the lid still closes tightly (+1).

9.0 Base

The top of the power base of the Cosori Glass Electric Kettle (GK172-CO).
The top of the power base of the Cosori Glass Electric Kettle (GK172-CO).
The bottom of the power base of the Cosori Original Electric Glass Kettle (GK172-CO) has a cord storage and also three small anti-slip silicone pads.
Materials
BPA-free plastic
Type
 Swivel 360°
Cord Storage
Yes

The Cosori has a standard BPA-free plastic 360° swivel base that’s sturdy and fits the carafe well (+5). At the bottom of the base is the cord storage and also three small anti-slip rubber pads (+4).

Power Cord

The two-pronged plug of the Cosori Glass Electric Kettle (GK172-CO).
The two-pronged plug of the Cosori Glass Electric Kettle (GK172-CO).
The power cord of the Cosori Glass Electric Kettle (GK172-CO) is 29.53 inches in length.
Type
two-pronged plug
Power
1500 W
Rated Output
120 V ~ 60 Hz
Cord Placement
Base
Cord Length
29.5" (75.0 cm)

The Cosori has a 29.53-inch flat power cord, which should be enough for household use. The cord uses a two-pronged plug which is typically considered not as safe as a three-pronged one. Nonetheless, it should be safe since the power base has a plastic casing and not a metal one.

7.3 Usability

The Cosori Original Electric Glass Kettle is somewhat easier to use than other kettles thanks mostly to the design of the carafe. Its large and unobstructed opening makes it easier to pour in water and clean. Other than that, the kettle pours to an acceptable standard, but unfortunately the cord doesn't wrap so neatly around its storage.

7.0 User Control

The clear plastic power switch of the Cosori Glass Electric Kettle (GK172-CO).
Control
One touch
Indicator Light
Blue LED
Display
No
Temperature Control
No
Presets
5
Keep Warm
30 minutes
Automatic Shut-Off
Yes
Boil-Dry Protection
Yes

The Cosori has a standard one-touch switch with no digital display or temperature control (+1).

The power switch is made of clear plastic and is positioned near the bottom of the carafe along the handle. It also acts as the indicator light which will illuminate with a blue LED when the kettle is running (+2).

The kettle has an automatic shutoff feature which will activate when boiling water triggers the thermo fuse (+2). This feature only works if you leave the lid open, but the boil-dry feature will turn the kettle off if all the water boils off (+2).

8.0 Ease of Use

A person in a grey shirt pouring water from the Cosori Glass Electric Kettle (GK172-CO) into a glass.

With only two distinctive buttons—one for power and one for opening the lid—the Cosori is very easy to use (+2). We also detected no odd odor during the first boil—a sign of good material quality and upkeep before delivery.

The carafe felt very light when we picked it up—it’s only slightly more than 2 lbs (907 g) (+2). It felt good in the hand and was sturdy enough to be carried at maximum capacity. The  angle between the arm and the kettle made pouring effortless (+1).

The large opening of 4.33 inches allowed us to comfortably pour in water from the tap or any container (+1). The water level markings are in the middle of the carafe for easy viewing and precise decanting (+1).

The power base fits firmly below its carafe so the kettle doesn’t wobble when boiling (+1). Due to the flat shape of the cord, it was impossible for us to wrap it tightly around storage. After wrapping, the cord still stuck out quite a bit—6.3 inches, including the plug.

6.0 Cleaning

A person in a black shirt holding the Cosori Glass Electric Kettle (GK172-CO) by its handle on one hand and the other hand wiping the carafe interior with a piece of tissue.

Cleaning the Cosori is very simple and effortless (+3). The opening is more than large enough for an adult hand to fit through and wipe the interior when necessary (+2). The limescale filter can be screwed off for frequent cleaning and maintenance as well (+1).

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