Richard Walker, managing director of Iceland, said Christmas food supplies could be impacted by a reduced supply of the gas – but stressed that the damage could be felt much sooner.
Meanwhile, trade body leaders have called on the Government to ‘urgently ensure adequate supplies’ of carbon dioxide to keep food production going.
‘This is no longer about whether or not Christmas will be okay, it’s about keeping the wheels turning and the lights on so we can actually get to Christmas,’ the supermarket executive told BBC Radio 4’s Today programme.
‘This could become a problem over the coming days and weeks, so this is this is not an issue that’s months away.’
Mr Walker said the retailer has stocked up on key items and said frozen food generally is well protect from the carbon dioxide shortage.
The shortage has been driven by soaring gas prices, which resulted in two US-owned fertiliser plants – which produce 60 per cent of the UK’s carbon dioxide – shutting down last week.
Richard Harrow, chief executive of the British Frozen Food Federation, also stressed that a shortage of dry ice would have a ‘minimal impact’ on frozen food supplies, highlighting that some reporting over the issue has been inaccurate.
However, he stressed that the shortage was impacting upon ingredients, chilled food and adding another pressure to an already challenged food production industry.
‘The CO2 shortage is already affecting primary production of many ingredients used by frozen food producers and this may lead to shortages of some frozen food supplies,’ he said.
‘However, chilled foods producers are much larger consumers of CO2, which is used to extend the shelf life, so chilled food supplies are likely to be hardest hit by the shortage.
‘The greater concern is that the CO2 shortage will disrupt production throughout the food supply chain at a time when we are experiencing severe labour shortages and freight problems.
‘These have led to major supply chain issues that are set to continue for the foreseeable future.’
Meanwhile, Andrew Opie, director of food and sustainability at the British Retail Consortium, said immediate state action is needed.
‘The Government must urgently ensure adequate supplies of CO2 for UK food producers,’ he said.
‘Disruption to CO2 supplies could not come at a worse time, with the shortfall of 90,000 HGV drivers already putting severe pressure on food production and distribution.
‘Retailers are working with their suppliers to manage this issue as best they can, but it is vital that Government takes immediate action to prioritise suppliers and avoid significant disruption to food supplies.’