How To Keep Coffee Hot Without Burning It (Simple Hacks)
There’s nothing worse than brewing a delicious fresh cup of coffee only to find it’s gone lukewarm by the time you have a chance to take your first sip. What a disappointing way to start your morning!
If only you knew how to keep coffee hot properly…
Home Brews Coffee to the rescue! Let’s look at how to keep our coffee hotter for longer without ruining its wonderful freshly brewed flavor. Then we’ll bust a few common myths about keeping your coffee warm.
7 Ways You Can Keep Your Coffee Hot
It’s time to learn about how to keep your coffee hot without turning it into a bitter, sad mess. Here are seven tips and tricks to preserve a hot cup of coffee.
1. Use a Cup Sleeve
A cup sleeve is an inexpensive and handy way of keeping your coffee warmer for longer. While its most obvious purpose is to help ensure your hand does not get scalded, it also warms your cup in the process. The sleeve acts as an insulator, keeping the heat in your cup and away from your skin.
You can be thrifty and save the sleeves that you get from your favorite coffee shop, or you can check out the cool sleeves for sale on Amazon. There are paper options, knitted sleeves, neoprene sleeves, and some that can even be customized.
Keep a bunch of them in your car and your bag, and you and your brew are always good to go.
2. Use A Travel Mug (that has good insulation)
Since you’re an avid coffee drinker, it’s safe to assume you have a favorite mug, right? The best travel coffee mug comes with a reusable lid, and we hope you have something like that.
Either way, putting a lid on your coffee is a simple solution that not only keeps the heat in but also preserves the aroma and flavors of your brew.
3. Preheat Your Cup
Those who let their coffee go cold will be glad to know that preheating the cup or mug preps it to maintain the ideal coffee temperature for a longer time (1).
Coffee brewing fanatics know the value of preheating a carafe to make sure that the temperature stays at 195 F to 205 F to effectively bring out the flavors of the coffee beans (2).
To do this for your mug, simply fill it with boiling water. Let the hot water sit for about a minute to let the temperature spread throughout the cup. When the liquid cools down, you can throw it away (don’t waste it – put it back in the kettle for next time).
The best thing about this little hack is it doesn’t affect the taste of your brew at all.
4. Invest in a Thermos (One that Actually Works)
One of the most obvious ways to keep your coffee hot is to put it in a thermal mug or tumbler straight after brewing. Some coffee makers actually brew straight into a thermal carafe for you.
These gadgets are designed with insulating materials such as double-wall stainless steel, plastic, and silicone, that can keep your coffee hot and steamy for up to six hours (3).
They work best for travel since they’re almost unbreakable and light enough to carry around anywhere. The most dependable ones can get a little pricey ($20 or more), but they’re also guaranteed to keep your brew warm to the sip.
5. Get a Cup Warmer for your Car
What’s worse than sitting in traffic? Sitting in traffic with a cold, bitter coffee!
The solution is simple: get an electronic cup warmer or mug warmer that you can plug into your car. Most fit in a cup holder and comfortably accommodate the size of your travel mug or a standard takeout cup.
6. Wrap it up with a scarf (or any thick fabric)
Keeping your coffee hot when you’re on the move is the biggest challenge; you don’t always travel with a heat source. Good news, though – if you have a scarf, a jacket, or any kind of thick fabric, simply layer it around your mug to give it a bit more insulation. If you’re camping, you should have something handy.
It won’t offer long-lasting heat, but it should provide your cup of coffee a way to keep warm enough to be a pleasant drink for at least an extra hour. Just long enough to keep you sane until you can grab a fresh hot brew.
7. Use Metal Coffee Beans
No, it’s not a magic trick – these metal beans are called Coffee Joulies.
Immerse them in your coffee, and they are designed to absorb the heat, get your java to the perfect drinking temperature, and keep it at that level for longer.
Worried about accidentally swallowing them? Don’t be – they’re the size of soup spoons. To make them extra effective (if you have the time), preheat them to keep your coffee hotter for longer.
4 Myths About Keeping Your Coffee Hot
It’s easy to choose quick fixes in life, but when it comes to keeping coffee hot, I’d advise against it. Keep these myths in mind to avoid spoiling your delicious cup.
Before delving deeper into the myths, inform yourself about how hot your coffee should be with this fun and informative video:
MYTH 1: You can use a hot plate
REALITY: Hot plates are great for heating things up, but absolutely not for your coffee.
They use direct heat, which produces high temperatures that can take your coffee from dreadfully cold to scalding hot. Why is this a problem? It will over-extract or burn your coffee, making it taste bitter (4).
MYTH 2: A candle warmer will do the trick
REALITY: Candle warmers are designed to warm up scented candles, not coffee – even if you find their plate is the right size for your cup. Unfortunately, like the hot plate, it quickly takes your coffee to hot and bitter.
MYTH 3: The microwave, just reheat your coffee in the microwave!
REALITY: The microwave is convenient, sure. Just get your cup in, push a few buttons, and you have hot coffee again. There’s more to it, however.
Coffee is a one-time use kind of deal… Reheating reorganizes the chemical makeup of the coffee and totally ruins the flavor profile. Some things just don’t work to reheat, and coffee is one of them.
Microwaves use radiation, so your coffee’s temperature can end up uneven. You may get a brew that’s steamy on top
and still just as cold everywhere else. To top it off, microwaved coffee also leaves a burnt coffee aftertaste.
MYTH 4: Keeping it in the carafe will keep it hot
REALITY: This one is actually true, but only if you have a thermal carafe. If you make coffee at home, keeping your fresh brew in a glass carafe on a hot plate quickly leads to stale and bitter flavors. What about a French press carafe? That’s even worse. The coffee stays in contact with the grounds under the filter, which can give you an over-extracted cup that leaves a drying effect on your mouth, minus all those rich coffee flavors.
Final Thoughts
Next time you brew a fresh pot, you’re armed with the information you need to keep the coffee hot for as long as possible. Remember, if flavor matters to you, keeping your coffee warm is crucial, rather than letting it cool and trying to reheat it.
What’s your best advice for keeping your drink hot? Did we miss any tips or myths? Let us know in the comments below!
FAQs
An insulated travel mug with a tight-fitting lid is the best coffee cup for keeping coffee hot the longest. Double-wall designs with a vacuum insulating layer are the most effective and can keep your coffee hot for up to 8 hours. Alternatively, you can splurge on a cup with a built-in heater, like the popular Ember Mug. It uses gentle heat to keep your coffee hot without burning it.
Yes, stoneware keeps coffee hot, which explains the popularity of ceramic mugs. It is a better insulator than other common mug materials like glass or plastic, though it is less insulating than a vacuum. Put a lid on your mug to help your coffee stay warm for longer.
To keep your coffee warm all day, you must invest in a well-designed thermos with reliable heat retention. The material and design of the thermos are most important for effective heat retention, with vacuum insulated models typically coming out on top.
Your coffee machine may not be hot enough for several reasons. If your brew temperature is just slightly too low, it could be because some cheaper machines simply don’t heat water effectively or retain heat during brewing. Also, check to ensure you don’t have high-altitude mode enabled. If your brew water is really cold, it could be a faulty heating element or a broken thermostat.
References
- Mazzarello, B. (2018, March 06). Pro-Tips: A New Take on French Press. Retrieved from https://blog.bluebottlecoffee.com/posts/pro-tips-french-press
- How to Brew Coffee The NCA Guide to Brewing Essentials. (n.d.). Retrieved from https://www.ncausa.org/About-Coffee/How-to-Brew-Coffee
- Brain, M. (2000, April 01). How Thermoses (Vacuum Flasks) Work. Retrieved from https://home.howstuffworks.com/thermos2.htm
- S. (2017, November 20). How Do I Keep My Coffee Hot? Retrieved from https://driftaway.coffee/hotcoffee/