The Best Travel Kettles

Recently, I’ve seen a few scattered conversations online about the best travel kettles. These conversations are usually framed around how the original poster (OP) hates that hotel room coffee makers are “so disgusting,” and how they are looking for a portable kettle that they could pack with them to heat their water. These are probably thinly veiled advertising campaigns, but it did get me thinking.

Hotel room coffee makers are kinda gross, is there a good travel kettle and, if so, what is the best travel kettle?

Wait, what’s the problem?

Hear me out. Hotel room coffee makers are indeed disgusting. Coffee makers are meant to be things that simply heat water and dispense it over coffee. Some of them use pods, some use little discs that go in a tray, and others are just a good ole’ drip coffee maker.

There are videos of people “cooking” chicken in the coffee makers of hotel rooms.

Do. Not. Do. That.

I also like tea, especially in the evenings when I have a little peppermint tea before I go to bed. It’s my ritual. The in-room coffee makers always make the tea taste like coffee and that ruins the tea. Since I’m in the U.S. we don’t typically have kettles in our hotel rooms like many European places do.

It would be nice to get rid of the coffee taste and not worry about the cleanliness of the coffee maker. I don’t know about you, but I’m not a huge fan of coq au coffee…

What is available?

My search proved that there were only a small number of what I think of as portable kettles. To be qualified as portable, I wanted them to be about the size of a tumbler mug, easily fit in a carry on bag or backpack, and able to boil water. The kettles also had to be made with a stainless steel heating chamber (some models had plastic walls and that is unacceptable).

Those qualities ruled out all but a few “portable” or “travel” kettles and left me with three to trial.

The first kettle is from a company called Nicewell. It was the smallest of the bunch, but the most pleasing to the eye. The next was from balbali (yes, it’s lower case) which was the largest of them but also the most utilitarian. Last is the Conyee which came in the middle of the sizes and also had a small cloth bag to protect it, which was a nice touch.

Here’s a few stated specs and features comparing them.

* The model changes, but it does have color options.

As you can see, these kettles are all pretty straightforward and don’t come with a lot of extra features. I also will take a moment to explain the grades of stainless steel. All processed metals have different grades to them with each grade being for a different application. These grades are not necessarily indicative of quality, they are to indicate the intended use case. Stainless steel grades 304 and 316 are both food safe and used in cooking products but 316 is more resistant to corrosion, specifically the type of corrosion from salt water.

Testing Parameters

To find the best travel kettle I needed to test these three candidates and see how they performed in the task of heating water. To do so, I devised a testing environment that gave consistent conditions to observe performance. I also used my personal electric kettle to create a standard to compare against.

Here are the conditions:

• Time how long it takes to heat cold tap water at two different temperatures. First at 175°F setting, then at the boil/212°F.
• Each timed test will use 300ml of water.
• Temperature accuracy will also be measured by temping the water once it is poured into the mug. Temperature is taken using a food grade thermometer and the water will be poured into a warm mug.
• The test at each temperature will performed twice, chilling the kettle with cold water in between.

To answer questions that I anticipate some of you may ask, here are my answers.

Why use a warmed up mug? Because warming a cup is common practice for both coffee and tea drinkers. I recommend that you try warming your mug at home. Just fill your mug with hot tap water and let it sit to absorb the heat while the coffee finishes.

What is the rationale for 300ml? That is a volume the all the kettles could hold and it is slightly more than one U.S. cup and about the right volume for a large ceramic mug or small tumbler mug.

Could the Conyee be the best travel kettle?

Why measure the temperature after pouring? Because the tea or coffee brewed with the water should be made in a separate mug or another vessel. You should not brew the tea or coffee in the kettle as that will stain and corrode the material.

Did you temp the tap water? No, because you cannot precisely control the temp of the tap water in the real world and I wanted to replicate that fact.

Is there a reason for the use of Fahrenheit? Yes, because that is what the kettles are programmed with. 175°F becomes 79.5°C and 212°F is, you guessed it, 100°C.

Are 175°F and 212°F chosen for a particular reason? Absolutely, those are two of the most common brewing temps for hot beverages and will likely be used most often.

Did you actually have a food grade thermometer already? Yes.

Why? I have my own espresso machine after spending years as a barista and I use the thermometer for steaming milk and occasional candy making.

Being a barista didn’t cause you hate making lattes? Weirdly, no.

Results

The baseline of my tests from the home kettle was made with a Cuisinart model, specifically this one. I quite like it and have been using it for years. It may not be as stylish as some other electric kettles, and more expensive, but the performance and simple to use features make it superior to anything else I’ve had. Here is how it performed:

Here is how the travel kettles performed:

* The thermos never achieved the target temperature in this run and I ended it at 4:45. In the second test I let it continue and it did, finally, arrive at the temperature after 9 minutes.

Conclusions

Right out of the gate I want to make clear that I never expected the Cuisinart and the various travel kettles to perform at the same level. That shouldn’t surprise anyone that a dedicated countertop kettle outperforms the small travel ones. I included it so that people could have a baseline when comparing these travel kettles to kettles that you might be used to.

There’s another element that I expected, which is the measured temperatures being less than the target temp. Most kettles like this have a thermostat that is designed to turn the heat plate off once it detects the target temp. Most of the thermostats are on the bottom of the kettle since that is the part that will always have water on it, no matter the volume of water being heated. The water nearest the heat plate will always be hotter than the water higher up in the chamber, meaning that the water isn’t evenly heated when it turns off. Some models continue to run for a few seconds after the target temp is reached to make sure all the water is that temperature, but these models here do not seem to do that.

That isn’t the only reason the measured temp will be lower. There are other factors, such as the mug absorbing some of the heat as well as energy loss to the air. These things cannot be accounted for with a thermostat. However, poorly calibrated thermostats could also play a part, which is what I am suspecting happened with some of these.

The balbali didn’t quite measure up to be the best travel kettle.

The results made clear that there is a problem with the balbali at 175°F. The components seem to be poorly calibrated for that temperature. During testing it appeared as though the heating element would turn off prematurely. I actually ran the test 5 times and only once did it heat up the 175°F at the time I expected, which was around 5 minutes. Every other time it took 9 minutes or longer.

What’s bizarre is that the balbali heated to boiling the fastest of the three travel kettles. Obviously the fact that it has the largest heating element helps with that and it makes the 175°F issue all the more frustrating.

Nicewell, conversely, was very consistent with the temperature. Job well done to whoever calibrated that kettle! It did, however take a while to reach 175°F, which doesn’t surprise me much because it had the smallest heating element.

The Conyee heated faster than the other two models to 175°F, but it also didn’t come anywhere near 175°F in the actual temp. I suspect that is because the thermostat being used is poorly calibrated. It also didn’t even break 200°F when set to boil/212, which furthers my suspicion regarding calibration.

Something else that isn’t conveyed with the data is that the Conyee seems to be a model that any seller can purchase. I saw many listings with nearly identical models to this one on Amazon. That’s not to say it’s bad, but it likely didn’t have the same thought put into it as the other two models, particularly the Nicewell which I cannot find any similar models to online.

The Winner?

I’m picking the Nicewell and here’s why. There’s a level of design and engineering that went into this that I simply don’t see in the other two. It’s stylish, very portable, and consistent to an extreme. These are all things that matter to me. I’m willing to take the slightly longer heating times in exchange for reliability.

The Nicewell is the best travel kettle!

The balbali clearly had calibration issues, but it did heat quickly to boil. It also has the largest volume so if you have a larger mug or tumbler, or perhaps if you are making tea for two, it will out perform the others. The increased size may turn some people off given that it will be more of a hassle to carry around. The Nicewell fits easily into a backpack or side pocket, the balbali… not so much. That means that you’ll have to give it more consideration in your packing. Between the size and the calibration, it’s just not quite what I have in mind, but it still could perform quite well for your needs and, I’ll be completely honest, when I travel with Nichole, I’ll probably bring the balbali because of the volume.

The Conyee, I would pick last. It never reached the target temps, by large margins, and it seems to be something that you can buy from dozens of different sellers. Does it work? Yes, but that’s about it. The one advantage it has is that it’s the cheapest, after that it’s getting beat in every regard.

If you’re interested in other travel gear reviews, check out my article on The Best Travel Humidifier.