Can You Reheat Coffee In An Air Fryer?

Are you scanning your countertop appliances, looking for a quick way to reheat a cup of coffee? If the air fryer caught your eye you might wonder if you can use it. We were also curious about the many functions of an air fryer, so we researched this to get an answer for you!

Air fryers are not suitable for reheating any liquid -including coffee or tea. These appliances heat foods by circulating hot air around the food, cooking from the outside in. Theoretically, this would result in a longer reheat time and unsatisfactory result because it would just heat the coffee cup and not penetrate the liquid.

So, if you really want your coffee getting hot again, a microwave will do better. Intrigued about else you might us an air fryer instead? Keep reading to know more about the uses, advantages and disadvantages of air fryers.

Air fryer machine cooking potato fried in kitchen. Lifestyle of new normal cooking., Can You Reheat Coffee In An Air Fryer?

Air Fryers are not Deep Fryers or Microwave Ovens!

As air fryers have taken the nation by storm, many users are asking about what really is an air fryer’s purpose in the kitchen. Many people think that air fryers are a substitute for microwave ovens and deep fryers, others think it’s a replacement.

Unlike deep fryers, this appliance uses high-speed hot air in cooking, it only needs a small amount of oil which makes cooking healthier. Speaking of healthy cooking, it has so many similar uses to microwave ovens but that doesn’t necessarily mean that it can replace them.

Microwaves and air fryers differ in their cooking styles which gives the user a variety of choices to choose from which of these appliances are they going to use depending on the result they want to achieve.

What can you not put in an air fryer?

Air fryer machine cooking potato fried in kitchen. Lifestyle of new normal cooking.

While air fryers are frequently compared to microwaves, this countertop kitchen appliance uses hot air in cooking food. There are a variety of foods that can be perfectly cooked in an air fryer however, there are things that are also prohibited from entering this appliance. Here are some of the foods that you should not attempt to put in an air fryer.

Battered Foods

This wet batter mixture will drip off while the food is cooking inside an air fryer. These appliances are not meant for handling wet batter. If you still insist on tossing it inside, you'll just end up with a mess instead of crunchy, tasty food.

 Some Leafy Greens

While you can perfectly cook some veggies with an air fryer, others are a big no. Light and airy leafy greens will just fly over your air fryer's basket since the appliance uses high-speed hot air inside. But if you're craving some healthy leafy greens, you can try this recipe for Air Fryer Veggie Chips.


Just like wet batter, melting cheese in an air fryer can be a big mess. Consider putting a slice of cheese inside of bread. Laying them in aluminum foil to prevent cheese from sticking in the basket is a game changer, too.

Raw Grains

Knowing how air fryers work, any grains that need submerging in boiling water are not air fryer friendly. Since it produces high-speed hot air, it will not be hot enough to boil the water needed for the rice or grains to cook.

Does reheated coffee still have caffeine?

Steam rising from a white cup of hot coffee with a spoon on a saucer over a wooden table

While hot coffee tastes and smells aromatic, caffeine will still be there when you're left with having to drink it cold. There will be the same amount of caffeine in your coffee five hours after preparation as there is five minutes after preparation. It will still keep you awake and energized. But what if you reheat your coffee? Will you lose its caffeine?

Caffeine mostly found in tea and coffee is a natural stimulant that keeps you alert and awake by stimulating your nervous system. It is directly absorbed by the bloodstream, travels to the liver, and is broken down into compounds that affect some organs in the body. It blocks the organic compound adenosine, which is responsible for making you feel tired and sleepy.

Reheating your coffee will only lose its aroma, but the caffeine content will still be the same. Caffeine is water soluble, but it does not evaporate. This is also the reason why freshly brewed coffee tastes better than reheated.

Can the air fryer replace the microwave?

Modern kitchen microwave oven

Microwaves and air fryers are different countertop appliances with two completely different cooking styles that bring convenience to every home's kitchen. Their functions differ depending on the food you put into them. They offer a healthier way of cooking by allowing you to cook your foods with less oil.

An air fryer would be the best option when discussing reheating food and if you want a result of a crispy texture. On the other hand, if you only want to reheat and not to create a different texture, then a microwave will still do better. This means that replacing microwaves with air fryers depends on the type of food and the result you want to achieve.

Can you boil water in an air fryer?

A man preparing a meal using an air fryer

As much as we want to say that air fryers can do anything, we just can't. We all know that air fryers generally fry foods with a lesser amount of oil.  Since this appliance uses the philosophy of convection currents and circulates hot air inside, it will leave you with a hot steamy liquid but will not boil the water.

On the other hand, you can add a small amount of water to help rehydrate any dried-out food. But be careful not to put a lot of water inside, or it will cause the appliance to break down when its electronic part touches the water.

In Conclusion

Using an air fryer to reheat coffee is not a safe method. It would be best to reheat coffee in a microwave or on the stovetop range. Additionally, you can use an air fryer as a healthier cooking method in your kitchen.

Check out our other suggestions for using this handy appliance: "Can You Put Pizza In An Air Fryer? [Frozen & Fresh Pizza]" and "Can You Dehydrate In The Cuisinart Air Fryer? [With Tips On How To Do So]."

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