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The ultimate guide on how ovens work
Whether you’re a first-time buyer or a seasoned home cook, understanding your oven leads to better food. Here’s everything you need to know.
In this guide
The basics
How does an oven cook food?
An oven is an enclosed cavity that heats food using three complementary methods. Most ovens blend all three, and understanding each one helps you choose the right setting and shelf position for every dish.
Conduction
Direct heat through trays, tins and oven surfaces transfers heat straight into the food.
Convection
Hot air moves around the cavity. Fan ovens speed this up for faster, more even cooking.
Radiation
Heat radiates from elements or flames onto the surface of the food to brown and crisp it.
Choosing the right oven
Types of ovens
Tap each type to see how it works and what it is best suited to.
Inside the machine
Key components and their roles
| Component | What it does |
|---|---|
| Heating element / burner | Provides the main heat source, whether that is electric elements at the top and bottom or a gas burner. |
| Thermostat & sensors | Monitor the oven temperature and switch the heat source on and off to maintain your chosen setting. |
| Fan and motor | Circulate hot air in fan-assisted ovens for quicker, more even cooking. |
| Door & insulation | Keep heat inside the cavity and improve safety and energy efficiency. |
| Oven racks & guides | Let you position food at different heights, which can affect browning and overall cooking performance. |
| Control panel | Allows you to select temperature, cooking functions and timers using dials, buttons or touchscreen controls. |
| Oven light | Lets you check progress without opening the door and losing heat. |
Positioning matters
Rack positions explained
Where you place your food inside the oven affects how it browns, rises and cooks through.
Getting the most from your oven
Cooking modes and functions
Open any setting below to see when to use it.
What’s new
Modern oven technology
Cook smarter
Tips for better results
- 1Always preheat, as even fan ovens perform best when the cavity has reached the correct temperature.
- 2Use the right shelf position for the food you are cooking.
- 3Try not to open the oven door too often, as this can disrupt temperature and slow cooking.
- 4An oven thermometer can help you check whether the internal temperature matches the setting on the display.
- 5Regular cleaning helps maintain airflow and more consistent results.
Setting the record straight
Common oven myths
Quick answers
Frequently asked questions
Ready to upgrade your oven?
Explore CATA’s range of built-in single, double and combi ovens.
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