Putting on a load of washing at 30-40°C saves 38% of electricity use, and washing at 20°C saves up to 62%, according to trials by Which?.

But if you want to save even more pennies, money expert Martin Lewis said we should consider cutting a particularly pricey part of our laundry routine out altogether.

Speaking on his BBC Radio 5 podcast, he asked: “Do you know what the real ‘demon appliance’ is in most people’s houses – the one that you don’t want to use because it’s really expensive?

“Tumble dryers. You’re typically paying up to a quid per load, so dry your clothes on an airer outside, to shorten the amount of time you’re using your tumble dryer, or avoid using it completely.”

How should I dry my clothes without a tumble dryer?

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