A UK food reserve: what to hold, where, and how to keep it fresh
Updated: Oct 29
The depots nobody remembers
Britain used to keep food against the day things went wrong. It stopped in 1995, and almost nobody noticed.
Throughout the Cold War, the Ministry of Agriculture ran a chain of buffer depots, unremarkable warehouses scattered across the country, some of them dating from the Ministry of Food's buffer depots of the Second World War. Subterranea Britannica, which has pieced their history together, describes what they held in the 1980s: flour, turned over every four or five years; tins of yeast; sacks of sugar; a hard fat known as Ministry Marge, with a shelf life of twenty years; and tins of sweet biscuits that seem to have been baked in the 1960s. It was not a diet anyone would choose. It was a diet that would keep people alive while the country worked out what to do next.
By 1995 there were 67 depots left. That year the last of the stock was sold and the sheds were disposed of. The Berlin Wall had come down, the Soviet Union had gone, and holding food against a war that would not come looked like money thrown away. The press at the time put the stockpile at around 200,000 tons; the Ministry never said.
It was a reasonable decision for its moment. The question is whether it is still the right one thirty years later, with a war on the continent again and a climate that delivered this summer's drought.
What the auditors found
Today Britain holds no public food reserve at all, and has never said how many days it could feed itself if the lorries stopped.
A warship leaves harbour with weeks of stores below decks, and nobody aboard thinks it eccentric. The country those ships protect works on a different principle. Its food arrives just in time, from fields, ports and depots run by private firms, and it has arrived so reliably for so long that the arrangement has come to look like a law of nature.
In September the National Audit Office looked at it closely. The auditors gave the industry its due: the supply chain held up through Covid and the war in Ukraine with little direct help from government. But they found that Defra relies too heavily on private businesses to absorb shocks, that their ability to survive a catastrophic event has never been tested, and that Defra itself is less confident than it was. Defra also lacks some of the legal powers it would need in a real emergency, including the power to direct businesses to act.
The background makes uncomfortable reading. Britain grows roughly 60 to 65 per cent of the food it eats, down from a peak of about 78 per cent in 1984, according to RUSI. Food is one of thirteen sectors of Critical National Infrastructure. The NAO's recommendation was measured, as auditors' recommendations always are: Defra should weigh the resilience measures used in other sectors and other countries. This paper takes up that recommendation for one measure, a strategic food reserve.
How other countries do it
The countries with long memories of shortage, and long borders with Russia, never emptied their depots, or have quietly filled them again.
Country | What it holds | How it works | Cost |
Grain for nine months of consumption, raised from six in 2026; about 98% Finnish-grown | The National Emergency Supply Agency manages it through contracted partners; the government decides when it is used | Not published | |
Grain, starting in the four northernmost counties, where storage is thinnest | The Board of Agriculture contracts existing grain handlers; they keep the stock turning over, but the contracted amount must always be there | SEK 575m over 2026–28 | |
About 82,500 tonnes of grain by the end of the decade, roughly three months' consumption in a crisis | The state owns the grain; four private firms store it in their own sites and must release it on demand | About NOK 63m a year | |
About 800,000 tonnes of grain, rice and pulses in two federal reserves | The agriculture minister wants to switch part of it to ready meals that need only heating, because raw grain needs working mills and bakeries | Up to €90m for the switch |
The European Commission added its own stockpiling strategy in July 2025. The direction of travel on the continent is not in doubt.
What strikes me is how modest these arrangements are. None of these governments has built a fleet of new silos or hired an army of storekeepers. They rent space that already exists from firms that already handle grain, and they pay to keep the stock moving so that it never rots. A reserve, done properly, is a contract with a merchant rather than a monument. The German example carries a second lesson: a sack of wheat is only food if the mill and the bakery are still working.
Seven questions any reserve has to answer
The case for a reserve is easy to make in a paragraph. The hard part is the design, and seven practical questions decide whether a reserve works or merely exists.
What to hold. Milling wheat is the obvious place to start. It keeps, it is traded in volume, and bread is what people reach for when things go wrong. Pulses, oilseeds, animal feed and possibly fertiliser come next. Count calories and you get one list; count nutrition and you get a longer one.
How much. Cover is days multiplied by people. Britain's flour millers grind about 6.2 million tonnes of wheat a year, so 30 days of milling wheat is about 510,000 tonnes and 90 days about 1.5 million. Norway's three months and Finland's nine show how far apart reasonable answers can be.
Where. Stock belongs where a disruption would bite first, not where the grain happens to grow. Sweden began in its far north, which depends on grain shipped up from the south. The British equivalents are the Highlands and islands, Northern Ireland and the far South West, and the stock should sit close to mills and ports.
Who holds it. The state can own the grain and rent the storage, as Norway does. It can contract handlers to keep a fixed quantity always available, as Sweden does. Or it can oblige or encourage industry to hold more. Each choice puts the cost and the risk in a different place.
How it is kept fresh. First in, first out, with checks on moisture and mycotoxins, and a clear answer to who carries the loss when old stock is sold and new stock bought. The old Ministry depots rotated their flour every four or five years. Modern contracts rotate grain continuously through the market.
When it is released. Someone has to decide, against a published trigger, and release the stock in a way that does not wreck the market the reserve relies on. In Finland the government makes that call. In Britain, the NAO's point about missing legal powers applies here too.
How it moves. Grain in a store feeds nobody. It needs lorries, drivers, diesel, mills and power. In a recent diagnostic of a farm haulage business, diesel was nearly a quarter of operating cost and its price moved by half inside a single year, while drivers used under half their legal driving hours. A reserve without a transport and energy plan is a larder with the door locked.
A British model, in two phases
I would start small, in the places most exposed, and test the reserve hard before growing it.
Phase 1, over two years. A rotating stock of milling wheat, held under contract by existing merchants, co-operatives and stores in three or four exposed regions. The state either owns the grain, as in Norway, or pays for the right to call on a fixed quantity, as in Sweden. At the end of the second year Defra, the devolved governments and industry run a live exercise: call the stock, move it, mill it, bake it, and see what breaks. It is far better to discover the weak link in an exercise than in an emergency.
Phase 2. If the exercise holds, extend the reserve to pulses, oils and feed, consider whether some of it should be held as ready-to-eat food on the German model, and agree how each devolved government draws on it.
There remains the question of which budget pays. RUSI argues that spending on food resilience can count towards NATO's target of 1.5 per cent of GDP on resilience. If so, a reserve stops being purely Defra's cost and becomes part of the country's defence, which is how the Finns, the Swedes and the Norwegians have always seen it. RUSI goes further and names Finland's grain reserve as the model Britain should follow.
The Budget on 28 October offered farmers little, and the NFU called it a massive missed opportunity for food production. It also left the detail of how Britain meets its NATO commitments to next year's spending review. That review is the place to settle where a food reserve sits.
What it would cost, and the objections
Thirty days of milling wheat would cost of the order of £13 million a year to hold. That figure rests on the assumptions below, and the storage rate in particular needs testing with merchants before anyone relies on it.
Element | Assumption | Per year |
Capital tied up | 510,000 t at about £225/t, the delivered bread-wheat price in October 2026, financed at 5% | £5.7m |
Storage | About £12 a tonne a year in existing stores (my assumption) | £6.1m |
Rotation and handling | About £2 a tonne on stock sold and replaced (my assumption) | £1.0m |
Total | About £13m |
For comparison, Norway spends about NOK 63 million a year, roughly £4–5 million, building a smaller reserve, and Sweden has set aside SEK 575 million for three years. These are modest sums beside the cost of empty shelves for a week.
Three objections deserve a straight answer.
It will distort the market. Only if the state buys and sells clumsily. The Nordic schemes rotate stock through the firms already trading it, so the grain stays in the market rather than sitting outside it.
The private sector already copes. It has, so far, and the NAO said so. Its point is that the private sector has never been tested against a catastrophe, and that Defra lacks some of the powers it would need to direct businesses in one.
Who pays? The taxpayer, through Defra or the defence budget. The alternative is that the bill arrives later, all at once, and at a far worse price.
We dismantled the last reserve because the danger seemed to have passed. It has come back. The case for a reserve now is modest, practical and, I think, hard to argue with.
About the author
I am Hugo Armstrong, Director of UPEPO Consulting, a supply chain practice for food and farming businesses based in Whitby. I served as a Royal Navy logistics officer and later worked in humanitarian logistics in East Africa, where the question was rarely whether food existed somewhere but whether it could be moved to where it was needed. Stock rotation, prepositioning and readiness are the work I was trained in. I would welcome a conversation with anyone thinking about how Britain feeds itself in a bad week.
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