Kitchen Experts Reveal Which Foods Should Never Go in an Air Fryer

Modern technology has transformed the way people cook at home. Among the most talked-about appliances in recent years is the air fryer, a device that has quickly become a staple in many kitchens.

Once considered a novelty item, the air fryer has steadily replaced other popular appliances, including slow cookers and even traditional ovens in some households.

Its appeal lies in convenience and speed. By circulating extremely hot air at high velocity, the appliance mimics the crisping effect of deep frying without submerging food in oil.

For many home cooks, this promises a healthier way to achieve golden, crispy textures with minimal added fat.

However, culinary professionals caution that not every ingredient is suited to this cooking method. While air fryers are versatile, certain foods can produce disappointing results — or even pose safety risks.

Why Air Fryers Became So Popular

The rapid rise of air fryers can be attributed to several factors. They offer speed, compact design, and the ability to cook smaller portions efficiently.

Unlike conventional ovens, which heat a large enclosed space, air fryers concentrate hot air within a smaller chamber. This focused circulation helps food cook quickly and develop a crisp exterior.

For individuals seeking to reduce oil consumption, the appliance provides an attractive alternative to deep frying.

Yet despite their benefits, experts emphasize that air fryers are not universal replacements for every cooking method.

Foods That Don’t Perform Well

Some vegetables, for example, may not deliver the same flavor or texture in an air fryer as they would when roasted or sautéed traditionally.

Broccoli is one such example. While it can be cooked in the appliance, its relatively mild flavor may not develop as fully compared to oven roasting or stovetop preparation.

But flavor concerns are minor compared to other foods that present more serious issues.

Popcorn, for instance, should never be prepared in an air fryer.

Reports have indicated that popcorn kernels can become lodged in the heating elements of the device. When this occurs, there is a genuine risk of fire.

Because the appliance relies on exposed heating components and powerful air circulation, loose kernels can easily shift into unsafe positions during cooking.

This makes popcorn a clear no-go item for air fryer use.

The Problem with Wet Batter

Another food type that creates challenges is wet batter.

Many people associate fried chicken with its thick, crispy coating. Achieving that texture typically requires oil hot enough to rapidly set the batter.

An air fryer, however, does not always reach the necessary temperature or provide the right environment for wet batter to solidify properly.

Instead of forming a crisp crust, the coating may drip, spread, or turn soggy.

The result can be a messy interior and an unevenly cooked exterior.

For dishes that depend heavily on liquid coatings, traditional frying methods often remain more effective.

Energy Efficiency Considerations

While air fryers are often promoted as cost-effective, some experts advise caution when using them for every meal.

Martin Lewis, a money-saving expert, has pointed out that relying exclusively on an air fryer may not always be the most economical approach.

“Air fryers work well for small items that cook quickly,” he mentioned during his segment on This Morning.

He explained that if someone uses the appliance repeatedly for multiple separate dishes, overall energy consumption may increase.

“If you find yourself using your air fryer 15 times for various dishes, in terms of energy consumption, it’s usually more efficient to opt for an oven. It’s definitely something to consider.”

He further clarified his position by adding, “If you’re going to use your air fryer fifteen times for different foods, generally speaking, you’d save more energy by using an oven.”

In certain cases, alternative appliances may prove even more economical.

“For instance, cooking a jacket potato for 10 minutes in the microwave is going to be much cheaper than baking a single jacket potato in an oven for an hour and a half.”

Cooking in Large Quantities

Steven Kipling from Which? echoes similar concerns.

“The savings quickly diminish if you need to prepare food in large quantities. Plus, if you have a lot to cook, you might find that air fryers lack the capacity of a standard oven or stovetop. Therefore, when it comes to cooking a significant amount of food, the oven or stovetop might still be the most cost-effective option.”

Capacity is an important factor to consider.

Most air fryers are compact by design, which makes them ideal for small households or quick meals.

However, when preparing large portions, multiple batches may be required.

Running the appliance repeatedly to cook enough food for a family gathering or large dinner can reduce the energy-saving benefits that initially attracted users.

Balancing Convenience and Practicality

Despite these warnings, air fryer enthusiasts remain loyal to their favorite gadget.

For many, the convenience of quick cooking times and easy cleanup outweighs potential drawbacks.

Some users even joke about using the appliance for nearly everything.

“I’m not taking his advice on this. I’m air-frying everything. I’d even air fry a cup of tea,” one individual remarked.

The humor reflects how deeply integrated the appliance has become in some households.

Still, experts suggest that balance is key.

Air fryers excel at cooking small items quickly and efficiently.

They are particularly useful for reheating leftovers, preparing frozen snacks, and crisping foods that benefit from circulating hot air.

However, they are not universally superior to ovens, microwaves, or stovetops.

Making Informed Kitchen Choices

The continued popularity of air fryers highlights the evolving nature of home cooking.

Consumers are increasingly drawn to appliances that promise efficiency, health benefits, and convenience.

Yet understanding the strengths and limitations of each tool is essential for achieving the best results.

Certain foods, such as popcorn and dishes coated in wet batter, can create safety hazards or disappointing textures when placed in an air fryer.

Large-scale cooking may also be better suited to traditional ovens or stovetops.

Ultimately, no single appliance can replace every other method in the kitchen.

Air fryers remain a valuable addition for many households, but thoughtful use ensures both safety and cost efficiency.

As technology continues to shape culinary habits, the key is knowing when to embrace innovation — and when to rely on tried-and-true techniques.

For those who swear by their air fryers, moderation and awareness may help maximize benefits while avoiding potential pitfalls.

And for others, a mix of traditional and modern cooking tools might provide the best of both worlds.

Whether you depend heavily on your air fryer or reserve it for occasional use, understanding its capabilities can help you make smarter, safer choices in the kitchen.