A forgotten method of preserving food, used by British families during the rationing of the Second World War, has resurfaced on social media and is being hailed as a secret weapon against the cost of living crisis.
Known as 'clamping', the technique involves storing root vegetables like potatoes, carrots, and parsnips in a simple pit dug in the ground, layered with straw and soil. It requires no electricity, no plastic packaging, and keeps produce fresh for months, even through a frosty British winter.
The revival began when a community allotment group in Leeds posted a tutorial on TikTok. Within days, the video had been viewed over 2 million times. Users from Manchester to Cornwall have since shared their own versions, using garden patches, balcony planters, and even window boxes.
'I remember my nan doing this in the lean years after the war,' said Margaret Higgins, 72, from Sheffield. 'We never wasted a thing. Now, with the price of a bag of spuds up 30% in a year, it feels like common sense.'
Food waste costs the average UK household £700 a year. With inflation still squeezing budgets, any saving is welcome. But this is about more than money. The trend speaks to a deeper frustration with the modern food system: the reliance on cold storage, the plastic wrap on every cucumber, the miles travelled for a meal.
'Clamping isn't just about saving a few pence, it's about taking control,' said Dr. Alistair Burns, a historian at the University of Hull. 'During the war, it was a patriotic duty. Today, it's a quiet act of rebellion against the supermarket's grip on how we eat.'
Online, the hashtags #ClampingChallenge and #RootCellarRevival are trending. Some enthusiasts are pushing further, fermenting cabbage, pickling eggs, and even building modern root cellars from recycled materials. The British innovation, it seems, is a rediscovery of thrift.
But not everyone is convinced. Food safety experts warn that improper clamping can attract pests or cause rot. The Royal Horticultural Society advises using only unblemished produce and checking stored items weekly. 'It's a skill like any other,' said head gardener Linda Townsend. 'But with the right care, it can be a real money saver.'
The phenomenon comes as union leaders and campaigners push for lower food bills and better wages. For many, this trick is a small step towards a larger change: a future where the kitchen table is not at the mercy of global supply chains.
'We shouldn't have to dig holes to afford a meal,' said Sarah Jenkins, Economy & Labour Reporter. 'But until the pay packets catch up with the prices, people will find their own way.'
And so, from the soil of Britain's past, a simple, stubborn solution grows again.
