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Mueller Ultra Kettle M99S vs Topwit Electric Kettle T630 Side-by-Side Comparison

By , , and ·Published

Mueller Ultra Kettle M99S

$39.99 from Amazon

Topwit Electric Kettle T630

$25.99 from Amazon
Mueller Ultra Kettle M99S vs Topwit Electric Kettle T630

Overall Verdict

The Topwit Electric Kettle T630 has some unique features, but not all are positive, leading it to fall short compared to the Mueller Ultra Kettle M99S.

Despite being priced lower, the Topwit offers a rare 2 L capacity, compared to the Mueller’s standard 1.7 L. Both kettles have water-level markings and an LED ring, but the Topwit lacks a proper limescale filter, cord storage, and a lid button that the Mueller has.

The Topwit excelled in quietness when boiling, surpassing even the highly-rated Mueller. However, its lower power draw resulted in higher energy consumption and slower boiling speed than the Mueller. Additionally, despite also being made of glass, it had poorer heat retention.

Ranking by
Showing: 2/2 Items

Pros & Cons

  • Fast boiling time
  • Low energy consumption
  • Quite when boiling
  • Good heat retention
  • Inexpensive
  • Easy to use
  • Extra large capacity
  • Low price tag
  • Quiet boiling phase
  • Light weight
  • Easy to use
  • Handle not ideally shaped
  • Cord wrap loosely
  • Inconvenient flip-lock lid
  • Slow boiling time
  • No limescale filter
  • No cord storage

Key Specs

Dimensions
L8.27 x W6.34 x H8.78 inches
L8.46 x W5.83 x H9.25
Weight
2.4 lbs (1.1 kg)
2.3 lbs (1.0 kg)
Material
Glass and BPA-free plastic
Glass and BPA-free plastic
Capacity
57.5 fl oz (1.7 L)
67.6 fl oz (2.0 L)
Power
1500 W
1000 W
Cord Placement
Base (cordless carafe)
Base (cordless carafe)

Where to Buy

Price at publication
$27.44
$23.26
$39.99 at Amazon
$25.99 at Amazon

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Analysis and Test Results

Performance

Overall Performance Scoring
8.1
7.2

Boiling Time

7.8
6.0
1.5 liter of water boiling inside the Mueller Ultra Kettle (M99S). The digital timer displays 07 minutes and 14 seconds.
1.5 liters of water boiling inside the Topwit Glass Electric Tea Kettle T630. The digital timer displays 08 minutes and 54 seconds.
Room Temperature
80°F
80°F (26.7°C)
Water Volume
1.5 liters
50.72 fl. oz. (1.5 liters)
Boiling Time
7m 14s
8m 54s

Energy Consumption

8.4
8.0
The power meter reads the energy consumption of the Mueller Ultra Electric Kettle (M99S) to be 148 Wh.
The Mueller M99S uses 148 Wh to bring 1.5 liters of water to a boil.
The power meter reads the energy consumption of the Topwit Glass Electric Tea Kettle T630 to be 150 Wh.
Voltage
113 V
112 V
Current
10.97 A
8.749 A
Power
1230 W
997 W
Energy Consumption
148 Wh
150 Wh

Noise Level

9.0
9.6
The Mueller Ultra Electric Kettle (M99S) is boiling 1.5 liters of water. The noise meter displays the maximum sound pressure level to be 70.3 dB. The power meter reads 113 V, 10.97 A, 1.23 kW, 73 Wh, 50 Hz, and 1.0 PF.
The Topwit Glass Electric Tea Kettle T630 is boiling 1.5 liters of water. The noise meter displays the maximum sound pressure level to be 64.1 dB.
Noise Level
70.3 dB
64.1 dB

Keep Warm

7.5
7.0
On the right is a Thermo Pro two-probe digital thermometer displaying 203°F for both probes. In the middle is the Mueller Ultra Electric Kettle (M99S) with 1.5 liters of water and two probes inside. On the right is a digital timer displaying 5 minutes on the countdown.
On the right is a Thermo Pro two-probe digital thermometer displaying 202°F and 204°F. In the middle is the Topwit Glass Electric Tea Kettle T630 with 1.5 liters of water and two probes inside. On the right is a digital timer on a 5 minute countdown.
After 5 Minutes
203°F / 95.5°C
202°F / 95°C

Design

Overall Design Scoring
7.9
5.9

In the Box

On the upper right is the Mueller Ultra Electric Kettle (M99S). On the left is a cardboard box. Below the kettle, on the right is an instruction manual and on the left is the power base.
On the upper right is the Topwit Glass Electric Tea Kettle T630. On the left is a cardboard box. Below the kettle, on the right is an instruction manual and on the left is the power base.

Dimensions

The Mueller Ultra Electric Kettle (M99S) is 8.27 inches in length, 6.34 inches in width, and 8.78 inches in height.
The Topwit Glass Electric Tea Kettle T630 is 8.46 inches in length, 5.83 inches in width, and 9.25 inches in height.
Length
8.3" (21.0 cm)
8.5" (21.5 cm)
Width
6.3" (16.1 cm)
5.8" (14.8 cm)
Height
8.8" (22.3 cm)
9.3" (23.5 cm)
Weight
2.4 lbs (1.1 kg)
2.3 lbs (1.0 kg)

Carafe

8.0
6.0
The heating plate with a LED ring around it of the Mueller Ultra Electric Kettle (M99S).
The heating plate with a LED ring around it of the Mueller Ultra Electric Kettle (M99S).
The heating plate with a LED ring around it glowing blue of the Mueller Ultra Electric Kettle (M99S).
The mesh filter attached to the plastic black V-shaped spout of the Mueller Ultra Electric Kettle (M99S).
The plastic black bottom of the Mueller Ultra Electric Kettle (M99S).
The carafe of the Topwit Glass Electric Tea Kettle T630 sitting on top of its power base.
The carafe of the Topwit Glass Electric Tea Kettle T630 sitting on top of its power base.
The heating plate with a LED ring around it of the Topwit Glass Electric Tea Kettle T630.
The heating plate with a LED ring around it glowing blue of the Topwit Glass Electric Tea Kettle T630.
The glass V-shaped spout of the Topwit Glass Electric Tea Kettle T630.
The lid opening diameter of the Topwit Glass Electric Tea Kettle T630 is 4.53 inches.
The plastic white bottom of the Topwit Glass Electric Tea Kettle T630.
Capacity
57.5 fl oz (1.7 L)
67.6 fl oz (2.0 L)
Weight
1.9 oz (53 g)
1.9 lbs (0.8 kg)
Materials
Borosilicate glass
Borosilicate glass
Spout
V-shaped
V-shaped
Opening Diameter
3.1" (8.0 cm)
3.54 in. (9 cm)
LED Ring
Blue
Blue
Filter
Fixed mesh
No
Water Level Markings
Yes
Yes
Tea Infuser
No
No

Handle

7.0
7.0
A person holding the Mueller Ultra Electric Kettle (M99S) by its handle.
A hand holding the Topwit Glass Electric Tea Kettle T630 by its handle.
Materials
Cool-touch BPA-free plastic
Cool-touch BPA-free plastic
Type
Cool-touch, anti-slip
Cool-touch, anti-slip

Lid

7.0
6.0
The black pop-up lid of the Mueller Ultra Electric Kettle (M99S) has a silver button in the middle.
The black pop-up lid of the Mueller Ultra Electric Kettle (M99S) has a silver button in the middle.
The pop-up lid of the Mueller Ultra Electric Kettle (M99S) opens at a 75° angle.
The white clip-lock lid of the Topwit Glass Electric Tea Kettle T630.
The white clip-lock lid of the Topwit Glass Electric Tea Kettle T630.
The clip-lock lid of the Topwit Glass Electric Tea Kettle T630 opens at an 80° angle.
Materials
BPA-free plastic
BPA-free plastic and 304 stainless steel
Type
Hinged
Hinged
Open Mechanism
Push-button pop-up
Push-button clip-lock

Base

9.0
5.0
The top of the power base of the Mueller Ultra Electric Kettle (M99S).
The top of the power base of the Mueller Ultra Electric Kettle (M99S).
The bottom of the power base of the Mueller Ultra Electric Kettle (M99S) has a cord storage and also three small anti-slip rubber pads.
The top of the power base of the Topwit Glass Electric Tea Kettle T630.
The top of the power base of the Topwit Glass Electric Tea Kettle T630.
The bottom of the power base of the Topwit Glass Electric Tea Kettle T630.
Materials
BPA-free plastic
BPA-free plastic
Type
360°
Swivel 360°
Cord Storage
Yes
Yes

Power Cord

The power cord of the Mueller Ultra Electric Kettle (M99S) is 30.31 inches long.
The three-pronged round power cord of the Topwit Glass Electric Tea Kettle T630 is 22.83 inches long (58 cm).
Type
three-pronged plug
three-pronged plug
Power
1500 W
1000 W
Rated Output
120 V ~ 60 Hz
120 V ~ 60 Hz
Cord Placement
Base
Base
Cord Length
30.3" (77.0 cm)
22.83 in. (58 cm)

Usability

Overall Usability Scoring
7.5
6.6

User Control

7.0
7.0
The power switch located on the handle of the Mueller Ultra Electric Kettle (M99S).
The handle of the Topwit Glass Electric Tea Kettle T630 has a power switch.
Control
One touch
One touch
Indicator Light
No
No
Display
No
No
Temperature Control
No
No
Presets
No
No
Keep Warm
No
No
Automatic Shut-Off
Yes
Yes
Boil-Dry Protection
Yes
Yes

Ease of Use

8.0
7.0
A person in a grey shirt pouring water from the Mueller Ultra Electric Kettle (M99S) into a glass.
A hand pouring water from the Topwit Glass Electric Tea Kettle T630 into a glass of black tea.

Cleaning

7.0
5.0
A person in a black shirt holding the Mueller Ultra Electric Kettle (M99S) by its handle on one hand and the other hand wiping the carafe interior with a piece of tissue.
A person in a black shirt holding the Mueller Ultra Electric Kettle (M99S) by its handle on one hand and the other hand wiping the carafe interior with a piece of tissue.
The removable mesh filter of the Mueller Ultra Electric Kettle (M99S).
A person in a white shirt holding the Topwit Glass Electric Tea Kettle T630 by its handle on one hand and the other hand wiping the carafe interior with a piece of tissue. On the right is a bottle of white vinegar.