UK Supermarkets Face Summer Shortages as Iran War Threatens CO2 Supply
The United Kingdom could experience significant gaps on supermarket shelves this summer if the ongoing conflict in Iran continues to disrupt critical supply chains. Ministers are actively developing contingency plans for what they term a "reasonable worst-case scenario," focusing particularly on potential shortages of carbon dioxide (CO2) that could impact supplies of chicken, pork, and fizzy drinks.
Government Planning for Supply Chain Disruption
Officials from key departments, including Number 10, the Treasury, and the Ministry of Defence, have conducted a comprehensive planning operation named Exercise Turnstone. This exercise was designed to rehearse various scenarios in which British industry could be affected by a prolonged closure of the Strait of Hormuz, a vital shipping lane. The planning assumed multiple disruptive events occurring simultaneously:
- The Strait of Hormuz remaining closed through June
- No permanent peace deal between the United States and Iran
- A mechanical failure at one of the UK's primary CO2 production plants
Business Secretary Peter Kyle addressed the situation on Thursday, stating that the public should feel "reassured" by the government's proactive contingency planning. He emphasized that CO2 supplies were "not a concern" for the UK economy, despite the detailed preparations. Kyle described the leak of these planning details as "unhelpful," telling Times Radio that such scenario planning is essential for public confidence.
The Critical Role of CO2 in Multiple Industries
Carbon dioxide is a byproduct of industrial production but plays an indispensable role across numerous sectors. Its applications are particularly vital in:
- Farming and Food Production: CO2 is essential for the humane slaughter of livestock, used to stun pigs and chickens. It is also widely employed in packaging fresh meats, salads, and baked goods, where it inhibits bacterial growth and extends shelf life.
- Beverage Industry: The gas is necessary for carbonating fizzy drinks and beer.
- Refrigeration: CO2 is crucial for cooling systems that refrigerate various products.
- Healthcare and Energy: Beyond food and hospitality, CO2 is needed for surgical procedures, MRI scans, and cooling nuclear power plants.
Any shortages would arrive at an especially challenging time for breweries, which anticipate increased demand ahead of the summer's football World Cup, commencing on June 11th. The UK stands as one of Europe's largest consumers of CO2, making supply resilience a top priority.
Government and Industry Responses
In March, Business Secretary Peter Kyle announced a £100 million government investment to reopen the mothballed Ensus bioethanol plant on Teesside. This decision was driven by fears that the Iran war could trigger CO2 shortages. Kyle stated that restarting the Ensus plant for three months demonstrates the government's commitment to maintaining economic resilience during the unfolding Middle East situation.
A government spokesperson clarified that "reasonable worst-case scenarios" are a standard planning tool used by experts and do not represent predictions of future events. The government continues to work closely with business groups to mitigate the impacts of Middle East developments.
Retail Sector Confidence and Preparedness
Ken Murphy, Chief Executive of Tesco, the UK's largest retailer, expressed support for the government's planning efforts. He stated that preparing for a worst-case scenario regarding CO2 supply interruptions represents a "reasonable analysis" and welcomed the reopening of the Teesside plant.
However, Murphy reported that Tesco has "seen nothing at this point" in terms of supply chain problems related to CO2 availability. None of Tesco's suppliers have flagged any issues, and the retailer remains confident in its ability to manage potential disruptions. Murphy highlighted Tesco's experience navigating various crises over the past six years, including Covid-19 and Brexit, noting that the company constantly works on internal scenarios to preempt supply chain issues.
He added that recent supply chain challenges have primarily stemmed from severe weather in southern Spain and North Africa, but Tesco's flexible supply chain has prevented noticeable gaps on shelves. "We are making sure we head off any issues at the pass well ahead of time," Murphy affirmed.



