5 easy ways to reduce energy while cooking

Why reducing energy while cooking matters

Reducing waste in the kitchen isn’t just about using up leftovers - it’s also about the energy we use to cook our food. With rising household costs and the climate impacts of fossil fuels, becoming more energy‑efficient in the kitchen can make a big difference.

While switching to a renewable energy tariff is ideal, you don’t need new gadgets or top‑of‑the‑range appliances to save energy. In fact, some of the most effective energy‑saving tricks are completely free. By being more aware of how you cook, you can lower your energy bills, reduce waste, and make daily life a little easier.

Five simple, cost‑effective ways to save energy while cooking:

1. Eat raw more often

You don’t need to cook every part of every meal. Adding a raw element is nutritious, refreshing and completely energy‑free.

Try:

• Swapping a cooked side dish for a raw salad.

• Turning leftover potatoes into a cold potato salad.

• Using leftover pasta or rice in a cold side dish with herbs and seasonal veg.

Raw dishes are quick to prepare, use less energy, and help you get more meals from what you already have.

2. Favour the stove top

While microwaves are usually the most energy‑efficient option, they aren’t always practical when cooking multiple elements. When that’s the case, choose the stove top instead of the oven.

Energy‑saving tips:

• Use a pot that fits the hob ring.

• Always use a lid to trap heat.

• Once your food reaches temperature, turn the heat down - simmering is enough for most dishes.

These small adjustments can significantly reduce your energy use.

3. Use a slow cooker or pressure cooker

If you can invest in just one energy‑saving appliance, choose a slow cooker or pressure cooker. Both use remarkably little energy.

• Slow cookers use just a bit more power than a lightbulb.

• Pressure cookers drastically reduce cooking time.

They’re perfect for stews, soups, curries and batch cooking - and they free you up to get on with your day.

4. Batch cook to save time and energy

Batch cooking is one of the most effective ways to reduce energy use in the kitchen. Cooking once but producing multiple meals means you’re only heating appliances once.

Great batch‑cooking options:

• Chilli

• Seasonal soups

• Stews

• Pasta sauces

Use your microwave to reheat portions, it’s one of the most energy‑efficient ways to warm food.

5. Use your oven wisely

If you’re using the oven, make it work as efficiently as possible.

Top oven‑smart tips:

• Fill the oven - cook multiple dishes at once

• Avoid opening the door unnecessarily (each time you do, heat escapes)

• Keep the oven door clean so you can check food without opening it

• If you have an electric oven, turn it off 10 minutes before the end - it will stay hot enough to finish cooking

These simple habits help cut energy use without changing your routine.

Small changes make a big difference

You don’t need expensive equipment to cook more efficiently. By being mindful of how you heat, cook and store your food, you can:

• Reduce your energy bills

• Cut household waste

• Save time

• Make mealtimes easier

Want more simple ideas that help your budget and the planet?

Explore our guides on how to reduce food waste and how to reduce packaging waste for more everyday tips that really make a difference.