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Why you do not want to reheat coffee in a microwave

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For spilling tea. Today, we’re tossing the beans out of a regular coffee riddle – why it tastes so bad when you reheat coffee in a microwave. Unlike some foods and beverages that typically taste better after being zapped (such as last night’s leftovers, a cold slice of pizza, or even a cup of mineral-rich bone broth), a nuke of your morning cup of joe tends to have the opposite effect , which gives it is a fun aftertaste that makes it directly undrinkable. Hardly the best part of waking up.

The reason for this, according to London-based food researcher Natalie Alibrandi, is simple. “Coffee has naturally volatile compounds, chlorogenic acid and quinic acid to name a few,” she says. “When you reheat your coffee in a microwave, you release several of these compounds that can taste astringent and bitter.”

And even though this happens with all coffee – no matter how you brew it – Alibrandi says there is one technique that tends to make the coffee taste even worse when reheated in a microwave. “If you make your coffee using a French press,” she says, “more volatile substances will float around, which will continue to brew and become even more bitter.”

Okay, a bit of a buzzkill. But in an attempt not to end up in a sour tone, we asked Alibrandi about her best practice when it comes to reheating the coffee so it tastes just as good a second time.

How to reheat coffee without a microwave

Who has not found themselves sitting down at their computer with a smoking hot cup of coffee to end up getting lost in their inbox so long that it is lukewarm when you look up? Been there done that. When this happens, “you pour your cup of coffee into a pot and reheating it slowly on the stove could be an opportunity for less bitterness, ”says Alibrandi. “But even better, just brew a new batch.”

Depending on your workplace, these may not be feasible solutions, which is why Alibrandi recommends that you prevent your coffee from getting cold in the first place. “The best way to keep your coffee warm is to store it in an insulated cup,” she says. “It will stay warm for about 30-45 minutes before it slowly begins to cool.” You can extend this time window by investing in a mug heater, and if none of these options are available, you might consider turning it into an iced coffee instead.

Our favorite thermo mug that keeps your coffee warm for hours

Hydro Bottle 20 oz. isolated tumbler – $ 28.00

Hydroflask is real that well. Like the brand’s beloved water bottles, each tumbler has the brand’s distinctive double-walled vacuum insulation that keeps cold drinks warm or cold for hours. The sleek design is easy to carry or store in cup holders, while the push-in lid makes it easy to sip (and not spill).

Yeti Rambler 30 oz. Travel mug with stronghold lid – $ 40.00

Struggling to find the perfect tumbler that fits and your car and actually does not waste? Meet the Yeti Rambler, your new travel companion. The container for this cup is tapered so that it fits easily into cup holders, while the raised handle provides easy access. But then there is the lid – it is screwed in and seals airtight to be able to travel without worries. Take it over bumps, curbs, off-road driving – the thing does not spill. It’s worth every penny.

S’well Pyrite tumbler with straw – $ 30.00

S’well was one of the first to change the insulated bottle game, and their line of tumblers, cups, mugs and more is just as impressive. Like all the others on this list, this one is 24 oz. cup is vacuum insulated with food grade stainless steel that keeps your coffee smoky hot and is easy to clean. But the star is the flexible stainless steel straw that makes it easy to sip in a pinch (and cuts down on disposable plastic waste while you’re at it). In true S’well fashion, the cup comes in a rainbow of colors, patterns and finishes. There is literally something for everyone.

Orca-insulated coffee mug – $ 25.00

You can spend a lot of money on a fancy schmany-insulated coffee mug. Or you can buy this affordable option from Orca that is just as good, if not, even better. The 20 oz. Stainless steel mug has a copper-clad inside that holds plenty of coffee and keeps it smoking hot all day. When done, toss it in the dishwasher for easy cleaning until the next time you fill up.

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