The air fryer craze shows no signs of slowing down as more Brits are investing in these handy kitchen devices.

Over the past few years, a growing number of people have been swapping their traditional ovens for air fryers.

These appliances offer a healthier, faster and more cost-effective way to prepare meals.

However, an appliance expert from AO.com has warned that Brits could be reducing the lifespan of their cherished air fryers - and even creating potential fire risks - by cooking inappropriate foods in them.

Jay Lockton warned that individuals are jeopardising their devices and their family's safety by using their air fryers to cook foods that aren't suitable for this method of cooking.

This warning comes as data from AO.com reveals that Brits have voted air fryers as their most loved kitchen gadget - surpassing old favourites like the oven, kettle and microwave, reports Leicestershire Live.

Despite their popularity, many people remain unaware that certain foods should never be cooked in an air fryer - including one that could pose a serious fire risk.

According to the expert, popcorn should never be cooked in an air fryer. This can actually create a fire hazard, as kernels may fly around and burn.

Instead, popcorn should be prepared on the hob or in the microwave.

To help consumers maintain their air fryers and extend their lifespan, Jay has identified four other popular foods that should be kept well away from these devices.

Cheese

Cheese could spell trouble for your air fryer, as the aftermath of melted cheese can lead to a hefty clean-up task and potentially obstruct the appliance's fan. It's crucial to time the addition of cheese carefully to prevent it from scorching onto the air fryer.

High sugar sauces

Sauces laden with sugar, such as barbecue or sweet chilli, can pose a significant challenge for your air fryer, as they are prone to caramelising (and possibly burning) at a faster rate. To maintain a clean air fryer, apply these sauces post-cooking.

Spinach 

Air fryers and leafy greens like spinach don't mix well and should not be used together. The high-speed airflow technology can cause them to flutter around, leading to potential burning or uneven cooking.

However, kale chips are an exception - just ensure you use ample oil to prevent them from being tossed about within the appliance.

Pasta, rice and raw grains

While it may seem self-evident, raw pasta, rice or grains will not cook adequately in your air fryer unless they have been pre-cooked.