Update, 2 August 2026. Observed pressure: wholesale tomatoes up more than 60%, iceberg about 90%, potatoes more than 40%; major retailers writing to Burnham on food as security. Europe's heatwave thins the import escape hatch.
You stand in the supermarket aisle and compare two own-brand items that used to be the cheap option. Neither feels cheap anymore. You pick the smaller pack because the trolley is already over budget, and you still have the gas bill to face when you get home.
That is food security for most people in 2026: not a white paper, but whether the weekly shop still adds up.
Food prices are already roughly 50% above 2019 levels[1]. Then the Strait of Hormuz entered a volatile regime in February 2026, pushing fertiliser prices up sharply in a single month. Farmers planted the spring harvest under those costs. You will see the full retail result in the shops in 2027. The first wholesale spikes are already here. That timeline is not a guess. It is how long it takes from field to shelf.
Why Britain is exposed
Britain produces about 60% of its food by value[2]. That headline sounds reassuring until you notice what we import: most fresh fruit, much of our out-of-season vegetables, most bread flour, and the fertiliser farmers depend on.
We cannot fix a global wheat spike by planting extra fields next Tuesday. Land, storage, milling, and crop rotation all take years to change. Meanwhile farmers are making decisions now with input costs they did not plan for twelve months ago. A government that waits until autumn 2026 to act is already late for the harvest after next.
The same chain runs through water. Drought and heat stress cut yields before fertiliser does. Irrigation pulls on electricity or diesel. When gas is dear, so is the nitrogen made from it, and so is the water management that keeps crops alive through a dry summer. August 2026 is not a forecast window anymore: wholesale produce spikes and halved broccoli yields in the field are what that chain looks like on the ground.
Climate-linked crop failure abroad does not stay abroad. When harvests fail in export partners or displacement rises from food stress, import prices and border pressure both move. The UK cannot plan food security on domestic production alone.
Food and energy share the same households. When gas prices rise, fertiliser rises, then food rises. The energy chapter covers the other half of that bill.
Not a one-off spike
It is tempting to treat the fertiliser shock as an emergency to patch: buy more nitrogen from somewhere else, ride out 2027, return to the 2010s baseline. That framing will fail you.
A large share of modern yields rests on nitrogen fertiliser made from natural gas, diesel for fieldwork, and irrigation that burns fuel or electricity. When those inputs get dearer or scarcer, food gets harder and costlier to produce. Prices rise first. Then volumes struggle. Policy built only to find new suppliers after each shock keeps repeating the same scramble. Policy built to redesign the system for lower and more reliable inputs (rotations that fix nitrogen, regenerative practices where they earn their keep, biological inputs, livestock integrated with arable land, storage that smooths volatility) treats the constraint as structural.
That does not mean "import less of everything tomorrow." It means the default 2010s assumption, cheap staples on a stable path, is a worse guide for the rest of this decade than designing for prices that stay higher and more volatile than households and ministers got used to.
What a serious programme would do
This programme rests on five near-term commitments, plus a redesign job that those commitments have to open space for.
Hold grain in reserve. The UK keeps almost no strategic grain stock. When global markets wobble, we have nothing to lean on. Government should buy and rotate a reserve big enough to cover a genuine supply shock, managed properly so it is still usable when needed.
Support farmers when fertiliser spikes, and fund the exit from dependence. Payments should reach the farmer applying the product, and they should trigger automatically when prices cross a defined threshold, not wait for the next budget round. Parallel funding should accelerate lower-input systems so emergency payments do not become a permanent life-support line for a model that cannot hold.
Feed children at school when households are stretched. Expanding free school meals to every household on universal credit uses systems that already exist. It is the most direct way to protect nutrition while prices work through, and while those prices stay elevated for longer than one bad harvest.
Reduce single-supplier risk. Where the UK depends on one country for a critical food line, government should help qualify a second source, even at a modest premium. That premium is insurance. Diversification buys time. It does not, by itself, fix a system running hot against input limits.
Back domestic production where shortfalls cascade. Not every crop can be grown here. This programme focuses on wheat for milling, fertiliser linked to the industrial strategy, and storage that smooths seasonal volatility, while farming practice shifts toward resilience under tighter inputs, not only higher gross output under cheap nitrogen.
Costs, tonnages, visa reform, and import diversification are in the Food Security: Deep Dive. Two companions walk the timeline: The Food Price Crisis and Food Prices: What Actually Happens Next.
If nothing changes
Another food price peak lands on households with no margin left after energy, rent, and NHS waits. For many families that is not a tighter budget. It is choosing between heating and eating. If the response is only emergency packages after the shelves look thin, the country pays more later and builds nothing durable.
Politically, food security is testable. Either the most vulnerable households are protected through the 2027 peak, and the farming system starts lowering its exposure to gas-linked fertiliser, or neither happens.
The Next Piece
Gas makes fertiliser. Fertiliser makes food. The next chapter is energy: the bill that arrives before the food bill does, and the demand side that renewables alone will not fix.
Read next: Energy.