Our Food Is Not Grown in the Supermarkets: A British Food Journey from Field to Shelf

Walk into any modern supermarket and the illusion is effortless: neat rows of gleaming apples, perfectly stacked peppers, herbs in tidy packets, and strawberries in December. It feels as though food simply appears—clean, convenient, and constant. But nothing in a supermarket grows there. Every item has travelled. Some from down the road, others from across continents. Behind each product lies a chain of soil, labour, logistics, and—often—air miles. This exploration examines where our food truly comes from, how far it travels, and whether we could grow more of it here in the United Kingdom—across the mainland and our islands. It also examines which supermarkets are making meaningful progress in reducing food miles, and how everyday shoppers can take part in that shift.

The Illusion of Plenty

Supermarkets are designed for abundance. In January, you will find strawberries from Spain, blueberries from Peru, green beans from Kenya, and tomatoes from Morocco. The shelves do not reflect British seasons—they override them. This creates a powerful disconnect. We no longer ask: What grows here? What grows now? Instead, we expect everything, all the time.

Yet historically, British diets were shaped by the land and the seasons. Root vegetables sustained us through winter. Fresh greens appeared in spring. Berries flourished in summer. Apples and brassicas filled autumn. The supermarket has flattened that rhythm entirely, replacing seasonal awareness with perpetual availability.

This shift happened gradually. Refrigeration technology, global shipping networks, and air freight made it possible. Consumer expectations evolved to match this new reality. We became accustomed to choice without constraint. We forgot that seasons existed. The cost of this convenience—measured in carbon emissions, environmental impact, and disconnection from our own agricultural heritage—remains largely invisible at the checkout.

Where Our Food Really Comes From

A typical UK supermarket basket may include apples from New Zealand, grapes from South Africa, asparagus from Peru, avocados from Mexico, and tomatoes from the Netherlands or Spain. Some arrive by ship—relatively efficient. Others arrive by air—fast, but carbon-intensive.

Air-freighted food is the key concern. It often includes soft fruits out of season, fine beans and mange tout, fresh herbs, and exotic produce with short shelf lives. Air freight can produce up to 50 times more carbon emissions than sea transport per kilogram. This means that a single air-freighted strawberry in January carries an environmental cost far exceeding its nutritional value.

The logistics are complex. Produce must be picked, packed, transported to airports, loaded onto aircraft, flown across continents, unloaded, transported to distribution centres, and finally delivered to supermarket shelves. Throughout this journey, the food is kept cold, often treated with preservatives, and handled multiple times. By the time it reaches your shopping basket, it has consumed significant resources and generated substantial emissions.

Yet the system persists because it is profitable and because consumers demand it. Supermarkets stock what sells. They sell what customers expect to find. Breaking this cycle requires both supply-side change and demand-side awareness.

What Can Be Grown in the UK?

The UK is far more capable than many assume. Across England, Scotland, Wales, and Northern Ireland—and islands such as the Isle of Wight, Orkney, and Jersey—we can grow an impressive range of produce.

Widely suited crops include potatoes, carrots, onions, cabbages and kale, apples and pears. These are the backbone of British agriculture, crops that thrive in our climate and soil. Seasonally abundant crops include strawberries in summer, raspberries and blackberries, courgettes, and tomatoes grown in fields or greenhouses. Protected cropping using greenhouses and polytunnels allows us to grow peppers, cucumbers, salad leaves, and herbs year-round.

The UK already produces nearly all of its carrots, most of its potatoes, and a large proportion of its soft fruit, especially in season. These successes demonstrate that domestic production is viable. However, challenges remain. Climate limitations restrict what can be grown outdoors during winter months. Labour shortages have plagued British agriculture for years. Higher production costs make UK-grown produce more expensive than imports. Consumer demand for year-round availability creates pressure to source globally rather than seasonally.

Despite these obstacles, expansion is possible. Greenhouse technology has improved dramatically. Renewable energy can heat protected growing spaces sustainably. Vertical farming and hydroponic systems offer new possibilities. Island agriculture, particularly in the Channel Islands and Scottish islands, could be developed further. The infrastructure and knowledge exist. What is needed is investment, policy support, and consumer willingness to accept seasonal variation.

Could We Reduce Air Miles?

The answer is yes—but not completely. We cannot eliminate all imports. Some foods genuinely cannot be grown in the UK climate. Bananas, citrus fruits, and tropical produce will always require long-distance transport. However, we could significantly reduce air miles by making strategic choices.

Eating seasonally is the most impactful step. British strawberries in June instead of January. Root vegetables in winter instead of air-freighted alternatives. This simple shift would eliminate the need for much air freight while reconnecting us with natural growing cycles.

Expanding greenhouse production using renewable energy would allow us to grow more produce year-round without relying on imports. Hydroponic and vertical farming systems use less water and land while producing higher yields. Supporting island agriculture would develop underutilized growing regions. Reducing reliance on air-freighted perishables by choosing frozen alternatives—which often have lower carbon footprints—offers an immediate solution.

Improving storage and preservation infrastructure would extend the availability of UK-grown produce. Cold storage facilities for apples and root crops could supply markets through winter. Freezing and canning at source preserves seasonal abundance for year-round consumption. These technologies are not new, but they have been neglected in favour of fresh imports.

UK Supermarkets Taking Action

Several major UK supermarkets have begun addressing food miles and sourcing practices. Tesco has committed to net-zero emissions and increased sourcing from British farms, with clearer country-of-origin labelling and reduction of air-freighted products. Sainsbury's has launched "By Sainsbury's" British sourcing initiatives and strong seasonal produce campaigns. Marks & Spencer operates a "Select Farms" programme supporting UK farmers with focus on transparency and traceability.

Waitrose & Partners emphasizes local and regional sourcing with clear labelling and ethical sourcing commitments. Aldi UK and Lidl GB have increased British produce lines with competitive pricing on seasonal UK goods. These initiatives demonstrate that major retailers recognize the importance of reducing food miles and supporting domestic agriculture.

However, progress remains uneven. Supermarkets are responding to both regulatory pressure and consumer demand. They will continue to stock imported produce as long as customers purchase it. The responsibility is shared between retailers, producers, and consumers.

The Shopper's Role

Supermarkets respond to demand. Every purchase is a signal. Practical steps for UK shoppers include checking country of origin labels, choosing British when in season, avoiding unnecessary air-freighted goods, buying frozen when fresh is imported long-distance, and supporting farm shops and local markets.

Small decisions, repeated daily, reshape supply chains. When enough customers choose seasonal British produce, supermarkets stock more of it. When air-freighted berries sit unsold on shelves, retailers reduce orders. Consumer behaviour drives supply decisions more powerfully than any regulation.

Understanding labels helps. "Country of Origin" indicates where food was grown. "Packed in UK" does not necessarily mean grown in the UK. British or UK flags typically indicate UK-grown produce. A seasonal snapshot helps shoppers make informed choices: winter brings potatoes, carrots, parsnips, and cabbage; spring offers asparagus, spring greens, and rhubarb; summer provides berries, tomatoes, courgettes, and lettuce; autumn supplies apples, squash, onions, and leeks.

The Bigger Picture

Reducing air miles is not about eliminating global trade. It is about balance. Supporting British farmers, respecting seasonal limits, and reducing unnecessary environmental impact creates a more sustainable food system. The supermarket is not the beginning of the story—it is the end of it.

Behind every apple, every carrot, every packet of herbs, there is a place. A field. A climate. A journey. When we choose what to buy, we are also choosing how far our food travels, how it is grown, and what kind of food system we support. The shelves may be full, but the responsibility rests with us. Because food does not grow in supermarkets. It grows somewhere else—and that somewhere matters.