Small changes in how you cook can cut your kitchen energy use by up to 40%. Save money and reduce your environmental footprint with every meal.
See Energy TipsYour full-size oven uses 2,000-5,000 watts. A toaster oven uses 1,200-1,800 watts. For small meals, the choice is clear.
A full oven heats a large cavity whether you are cooking a turkey or a single piece of toast. For meals serving 1-3 people, a toaster oven or countertop convection oven heats faster, uses less energy, and does not warm up your kitchen.
Use the full oven for: Large roasts, multiple trays of baking, whole chickens, and holiday meals.
Use a toaster oven for: Reheating, small batches, toast, melting cheese, roasting vegetables for two, and baking a few cookies.
Air fryers are essentially small convection ovens. They use 800-1,500 watts and cook food faster through concentrated hot air circulation, making them extremely energy-efficient.
Each of these habits reduces energy use. Combined, they make a significant impact on your utility bills.
Cooking with a lid traps heat and steam, reducing cooking time by up to 25%. Water boils faster, sauces simmer more efficiently, and less energy escapes into your kitchen.
Turn off the oven or burner 5-10 minutes before the food is done. Residual heat finishes the cooking. This works especially well for pasta, rice, eggs, and roasted vegetables.
When you fire up the oven, fill every rack. Roast vegetables on one shelf while baking protein on another. The oven uses the same energy whether it is full or nearly empty.
Match your pan to the burner. A small pot on a large burner wastes up to 40% of the heat around the sides. A matched pair transfers heat directly and efficiently.
Only boil the water you need. An electric kettle is more efficient than heating water on a stove. For pasta water, use the kettle first, then transfer to the pot.
Cooking frozen food uses significantly more energy. Plan ahead and thaw in the refrigerator overnight. You will save both energy and cooking time.
Pressure cookers reduce cooking time by 70% for stews, beans, and grains. Less time on the burner means dramatically less energy consumed per meal.
Warped pans with uneven bottoms lose heat through poor contact. Flat-bottom cookware makes full contact with the burner for maximum heat transfer efficiency.
Every time you open the oven door, the temperature drops 15-25 degrees. Use the oven light and window instead. The oven then spends energy reheating rather than cooking.
Not all cooking methods are created equal. Here is how they compare for a typical meal.
| Cooking Method | Avg. Wattage | Time (typical meal) | Energy Used (kWh) | Efficiency Rating |
|---|---|---|---|---|
| Microwave | 1,000 - 1,200W | 5 - 10 min | 0.08 - 0.20 | Excellent |
| Pressure Cooker | 700 - 1,000W | 15 - 30 min | 0.17 - 0.50 | Excellent |
| Slow Cooker | 70 - 250W | 4 - 8 hrs | 0.28 - 2.00 | Good |
| Toaster Oven | 1,200 - 1,800W | 15 - 25 min | 0.30 - 0.75 | Good |
| Induction Hob | 1,400 - 2,000W | 15 - 30 min | 0.35 - 1.00 | Good |
| Electric Hob | 1,500 - 2,500W | 20 - 40 min | 0.50 - 1.67 | Average |
| Gas Hob | ~1,750W equiv. | 20 - 40 min | 0.58 - 1.17 | Average |
| Full-Size Oven | 2,000 - 5,000W | 30 - 90 min | 1.00 - 7.50 | Poor (small meals) |
Explore more ways to optimise your kitchen with our comprehensive efficiency guides.
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