‘A sign to change your technique’: how to make your toothbrush last longer – and keep it out of landfill

They may be small, but toothbrushes can create mountains of waste. Experts reveal how to clean and care for them and extend their life

• The best electric toothbrushes, tested

If toothbrushes were sentient, they’d complain about their lot in life. Their thankless existence involves repeatedly cleaning one of the grimmest parts of the body, then being thrown out once their bristles are insufficiently effective. Or, in the case of electric toothbrushes, decapitated before resuming their duties with a fresh head.

This relentless cycle is essential for hygiene reasons: an ineffective brush can lead directly to tooth decay and gum disease. However, given the big dual crises of our time – climate and cost of living – it would certainly help for toothbrushes to last a bit longer. So what can we do to maximise their longevity without sacrificing dental hygiene?