Mueller Ultra Kettle M99S Review
Pros: Large capacity, decent boil time, cool LED lights
Cons: Fragile, no insulation, shut-off delay
Our Analysis and Test Results
This Mueller Ultra Kettle M99S is a flashy but capable unit that is reasonably priced. However, if you need features such as temperature adjustment and holding, this machine will leave you in the lurch. Yet, we find the cool lights (and the price) to mitigate much of the unit's shortcomings.
The Mueller will bring 4 cups of water to a boil in 4 minutes and 36 seconds — about average for the class. The boil test we use for our kettle reviews is basic but telling. We start with four cups of 57° F water and pour it into the unit's reservoir. We switch the kettle to ON and concurrently activate a stopwatch. When the water reaches a rolling boil the watch is stopped and the time recorded. To ensure boiling point consistency, we include a thermometer. At our headquarters elevation, a boil occurs at ~201° F.
Evaluating how a kettle discharges water from its reservoir is a critical aspect of our evaluation. When compared to the class as a whole, the Mueller does not impress. However, when compared to the other pitcher-style models, its standing improves significantly. The unit is relatively balanced, and, as its reservoir is clear, it's easy to see when the water is approaching the lip so that one doesn't tip too aggressively. Slow pouring aside, this model's relatively broad spout allows for hasty pours when necessary.
Ease of Use Features
The Mueller has a short list of ease of use features. The inside material is glass — with makers at 0.5, 1.0, and 1.8 liters — allowing one to reference the water level with a glance. It has an automatic shut-off feature that resets the ON/OFF switch when a boil is achieved and the lid is attached by a hinge with a spring-loaded, push-button release.
Despite the limited features on the Mueller, we find its low cost to reflect an overall good value to consumers. We came to this conclusion because the unit is well designed, boils water in a respectable period of time, and the price is among the lowest in the class.
This review of the Mueller Ultra Kettle M99S covers every aspect of this machine that a consumer will want to know before they get out their wallet. Specifically, we looked at boil time and pouring characteristics. Additionally, we collated the ease of use features that add to the product's range of functionality. All told, this article serves as an easy-to-use comparative analysis that allows one interested in an electric kettle to confidently pick a device to match their needs and budget.
— Nick Miley, Michelle Powell and Austin Palmer