Air Fryer vs. Oven vs. Deep Fryer: Which One Should You Buy?

Thinking about upgrading your kitchen? An air fryer, oven, or deep fryer each has its strengths, and understanding their pros and cons can help you make the right decision for your cooking needs. The main factors you should consider are:

  • Health: How much oil do you want to use? Health-conscious cooks may prefer appliances that use less oil or no oil at all.

  • Speed: Do you need meals ready in a hurry? Speed and preheating times vary by appliance.

  • Versatility: Do you want more than just one cooking option? Versatile appliances can do multiple tasks like roasting, baking, and frying.

  • Bench Space: Do you have enough room in your kitchen for a large appliance, or are you working with limited counter space?

  • Cost: Not just the upfront price, but also the long-term running costs like energy consumption and oil replacement.

  • Energy Efficiency: Which appliance uses the least energy while delivering great results?

With these factors in mind, let’s explore each appliance and see how they measure up.

What is an Air Fryer?

 

 

An air fryer uses rapid air circulation to cook food. The hot air crisps the food's exterior, giving it a fried texture with little to no oil.


Pros:

  • Healthier frying: Air fryers require significantly less oil than deep frying, making it a great choice for health-conscious cooks.

  • Quick preheating: Air fryers heat up quickly, saving you time compared to an oven.

  • Versatile cooking: You can air fry, bake, roast, and reheat, offering a range of cooking options in one compact appliance.

  • Energy-efficient: Air fryers typically use less energy than ovens, making them a good choice for reducing electricity costs.


Cons:

  • Smaller capacity: While larger models can cater to families or batch cooking, air fryers still have less space than a full-sized oven and some deep fryers. 

  • Crispiness can vary: While air fryers achieve great crunch with minimal oil, battered foods may not crisp up quite like deep-frying. However, using the right technique, such as a light spritz of oil, can help enhance the texture.


Best for:

  • Health-conscious individuals looking to cut down on oil.

  • Busy households needing quick meals.

  • Renters or those with limited bench space, as air fryers are compact and easy to store.

What is an Oven?

 

 

An oven works by using either convection (fan-forced) or conventional heating (top and bottom elements) to cook food.


Pros:

  • Large capacity: Ovens are great for cooking big meals, perfect for family dinners, or when you’re hosting.

  • Even cooking: Convection ovens distribute heat evenly, which is ideal for baking and roasting.

  • Traditional Aussie roasts: If you love your roast dinners, an oven is perfect for cooking meats, veggies, and even baked desserts.


Cons:

  • Slower preheat and cook times: Ovens generally take longer to preheat and cook compared to air fryers.

  • Higher electricity use: Ovens can consume more energy, especially when cooking smaller meals that could be done more efficiently in an air fryer.

  • Less crispy texture: While ovens excel at baking and roasting, they don’t produce the same crispy texture as air fryers or deep fryers.

  • Can heat up the home: Ovens can significantly raise the temperature in your kitchen and surrounding areas, especially on hot Aussie days, making your home feel warmer than necessary.


Best for:

  • Cooking large meals for a family or gathering.

  • Baking enthusiasts who want an appliance that can handle bread, cakes, and pastries.

  • Traditional cooking methods like slow-roasting meat or baking casseroles.


Check out the Ninja Oven range.

 

What is a Deep Fryer?

 

A deep fryer submerges food in hot oil, cooking it quickly to produce a crispy, golden texture.


Pros:

  • Superior crispiness: Deep frying creates a rich, golden crunch, especially for battered foods like fish, chips, and fried chicken.

  • Classic fried flavour: Deep frying delivers the traditional taste many people love, making it great for recreating takeaway favourites.


Cons:

  • High oil usage: Deep fryers require a lot of oil, making them less economical in the long run, especially if you’re frying frequently.

  • Messy cleanup: The oil needs to be filtered or replaced after each use, adding to the maintenance and cleanup time.

  • Not as healthy: Deep frying uses a significant amount of oil, making it a less health-conscious option for those watching their fat intake.


Best for:

  • Indulgent crispy foods like chips, fried chicken, and doughnuts.

  • Frequent frying needs in commercial or home kitchens.

  • Recreating takeaway favourites when you want the ultimate crispy texture.

 

Which One is Right for You?

 

 

When choosing the right appliance, think about how you cook and the space you have. 

For those who meal prep regularly, an air fryer is a time-saver—it cooks quickly, uses little to no oil, and can handle reheating with ease. Plus, with a Ninja air fryer, you get the added versatility of multiple functions like roasting, baking, and dehydrating, meaning you can prepare a wide range of meals with just one appliance. 

For families or those who need to prepare large meals, an oven offers the capacity to batch cook and handle roasts or multiple dishes at once. However, it’s not always the quickest option and can heat up your kitchen, especially in warmer weather.

If you crave crispy, deep-fried flavours, a deep fryer delivers the most authentic results, making it perfect for indulgent foods like fish and chips, fried chicken, or crispy battered snacks. However, it comes with higher long-term costs due to the oil usage.

For those with limited space, a compact air fryer is the most efficient option. A Ninja air fryer not only saves space by replacing multiple appliances but also cuts down on energy use and cost. Its versatility, energy efficiency, and low ongoing maintenance make it a solid investment. 

Ultimately, choosing between an air fryer, oven, or deep fryer depends on your lifestyle and cooking habits. Let’s look at this quickly and comparatively…


Feature

Air Fryer – For Busy, Health-Conscious Cooks

Oven – For Traditional & Large-Scale Cooking

Deep Fryer – For Frequent Frying & Indulgence

Health

Uses little to no oil - best for lighter, everyday meals.

Can be healthy but often requires oil for roasting and baking.

High oil usage - best for occasional treats rather than daily cooking.

Cook Time

Quick preheat and cooking - great for fast, weeknight meals.

Longer preheat and cook times - better for slow roasting and baking.

Fast cooking, but oil takes time to heat up - best for planned indulgence.

Cost

Mid-range price; saves money over time with lower energy use and minimal oil needs.

Higher upfront cost and energy use; worth it for those who cook big meals often.

Cheap to buy, but ongoing oil costs and electricity use add up.

Ease of Use

Simple digital controls - set and forget convenience.

Requires manual temperature and time adjustments - best for hands-on cooking.

Straightforward but requires careful handling of hot oil.

Maintenance

Easy cleanup with dishwasher-safe parts - minimal effort required.

Requires scrubbing, especially for baked-on food.

High maintenance - oil must be filtered, changed, and disposed of properly.

Energy Efficiency

Uses far less power than an oven - great for reducing electricity bills.

The least efficient - long cooking times mean higher energy use.

More energy efficient than an oven, but frequent oil changes offset savings.

Food Types

Fries, chicken, veggies, snacks, reheating leftovers.

Roasts, casseroles, baked goods, large meals.

Battered foods, fish, chips, doughnuts, crispy chicken.

Lifestyle

Best for busy families, meal preppers, and small kitchens needing quick, healthier meals.

Ideal for home cooks who love baking, roasting, and cooking large meals for gatherings.

Best for those who fry food frequently or love authentic crispy textures - ideal if you don’t mind the upkeep.


Helping you make decisions for your home

 

 

Choosing the right appliance depends on your cooking habits, lifestyle, and priorities. If you're after healthier meals, faster cooking times, and less oil, a Ninja air fryer bridges the gap between an air fryer, oven, and deep fryer. It offers unmatched versatility, combining the crispy texture of deep frying, the convenience of fast cooking, and the healthy cooking options of air frying - all in one sleek, stylish appliance. 

With Ninja’s range of air fryers in various sizes and designs, you can easily find the perfect fit for your kitchen, whether you're cooking for one or feeding a whole family.

Explore the Ninja Air Fryer range, featuring models that suit every kitchen size and cooking need: Shop Now

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