Fermentation, foraging and slow cooking are having a remarkable revival. Here’s whether returning to older food traditions represents a genuine cultural shift.
There is a jar of kimchi on the shelf of a kitchen in Leeds that has been fermenting for eleven days. Nearby, a sourdough starter named Gerald, inevitably has been sustained for three years. The household’s owner, a 34-year-old graphic designer, learned none of this from a grandparent. She learned it from YouTube, from Instagram accounts, from a three-day foraging course in the Peak District she found on a well-being website.
This is a story that is playing out, in various forms, across kitchens in every British city. The movement toward fermentation, foraging and slow food is both genuinely new and strikingly ancient a high-tech nostalgia for practices that sustained human populations for millennia before industrial food production arrived to make them unnecessary.
The Science Behind the Revival
The timing of fermentation’s revival as a consumer trend is not entirely coincidental. The gut microbiome revolution the explosion of research beginning roughly in the early 2010s into the relationship between gut bacteria, immune function, mental health and metabolic regulation has given ancient fermentation practices a contemporary scientific framing that makes them newly compelling.
The link is real. Fermented foods contain live microorganisms, and a substantial body of evidence suggests that regular consumption of these organisms supports microbiome diversity in ways associated with improved health outcomes. A landmark 2021 study by Stanford University, published in Cell, found that a ten-week high-fermented-food diet significantly increased microbiome diversity and reduced markers of inflammation in human participants results that exceeded those from a high-fibre diet over the same period.
Foraging: Ancient Practice, Contemporary Resonance
Foraging the gathering of wild, uncultivated food from landscapes rather than from farms or shops has experienced a revival that is in some ways even more striking than fermentation’s. A survey by the Woodland Trust found that public interest in foraging had increased significantly over the past decade, with younger demographics in particular showing growing enthusiasm for identifying and gathering wild plants and fungi.
The appeal is multifaceted. In an era of high food costs and ecological anxiety, foraging offers something that feels both practical and meaningful: a direct, non-mediated relationship with the land and its produce. What it can do and this may be its most significant value is reconnect people to seasonality, ecology and the idea that food exists in a landscape before it exists in a package. That shift in perception, even when foraging amounts to a few handfuls of wild garlic per year, is not trivial.
The Slow Food Philosophy
Underlying both of these trends is something that the Italian Slow Food movement, founded by Carlo Petrini in 1989 as a direct challenge to the opening of a McDonald’s near the Spanish Steps in Rome, has been arguing for more than three decades: that the industrialisation of food production has come at a cost to flavour, to biodiversity, to the communities that produce food, and to the cultures that make eating meaningful.
The global food system is responsible for between 21 and 37 percent of anthropogenic greenhouse gas emissions, depending on how supply chains are accounted for. Fermentation, foraging and slow food are not solutions at scale, but they are expressions of a food philosophy that aligns closely with where the evidence on sustainable eating points. What is happening is not a simple retrieval of ancient practices but a selective, scientifically informed and culturally contemporary engagement with them. In a world of ultra-processed food and meals assembled in under four minutes, that might be precisely the subversive act it needs to be.