UK Could Face Gaps on Supermarket Shelves by Summer if Iran War Continues

Why It Matters

CO₂ is critical for meat processing, beverage carbonation and refrigeration, so any supply shock could directly affect consumer goods and inflation. Government action signals the importance of commodity resilience for the UK economy.

Key Takeaways

• Iran war threatens CO₂ shipments via Strait of Hormuz
• UK government launches Exercise Turnstone to plan for supply disruptions
• £100 million ($127 million) invested to restart Ensus bio‑ethanol plant
• Tesco reports no current CO₂ shortages in its supply chain
• Potential gaps could affect chicken, pork, fizzy drinks this summer

Pulse Analysis

The global carbon‑dioxide market is unusually vulnerable to geopolitical shocks because a large share of industrial‑grade CO₂ is captured as a by‑product of natural‑gas processing in the Middle East. The Strait of Hormuz, through which most of the region’s gas cargoes transit, has become a chokepoint as the Iran‑Israel conflict escalates. A prolonged closure would curtail the flow of CO₂ to Europe, where the UK ranks among the highest consumers for food preservation, beverage carbonation, and industrial cooling. Analysts therefore watch the situation closely, noting that even a modest reduction in supply could ripple through sectors that depend on the gas for humane livestock stunning, packaging, and refrigeration.

In response, the British government activated Exercise Turnstone, a scenario‑planning drill run by the Cobra emergency committee. The exercise assumes the strait remains blocked through June and that a diplomatic settlement is not reached. To mitigate risk, ministers earmarked £100 million (about $127 million) to restart the dormant Ensus bio‑ethanol plant on Teesside, a facility that can generate CO₂ as a secondary product. This move mirrors previous contingency actions taken during Covid‑19 and Brexit, underscoring a broader strategy of building domestic redundancy for critical inputs. By securing a short‑term domestic source, the government aims to shield the food supply chain from external volatility while signalling to markets that it can act swiftly.

For retailers, the headline risk is visible on supermarket shelves. Carbonated drinks, fresh meat, and ready‑to‑eat salads all rely on CO₂ for preservation and taste. While Tesco reports no immediate shortages, a sustained deficit could force suppliers to ration the gas, leading to reduced product ranges or higher prices for consumers. Such disruptions would feed into broader inflationary pressures and could erode consumer confidence during a period already marked by weather‑related supply shocks in Southern Europe. The episode highlights the strategic importance of energy‑linked commodities and may accelerate investment in alternative CO₂ capture technologies or diversified supply routes, reshaping the UK’s food‑safety landscape for years to come.