Rogue takeaways are passing off catfish as traditional fish and chips to cut costs, according to a new investigation. Customers seeking a classic fish supper are being served pangasius, also known as river cobbler, a type of tropical freshwater catfish, without their knowledge.
Cost pressures driving fraud
Rising costs, exacerbated by the Iran war, are blamed for the practice. Catfish, which is safe to eat, costs around £3.40 per kilogram wholesale, compared to £15 per kilogram for cod or haddock. The Chartered Trading Standards Institute acknowledged that while mis-selling is not widespread, unscrupulous businesses still exist.
Investigation findings
The investigation, prompted by a Liverpool chip shop owner, tested ten takeaways in Liverpool and Manchester. DNA testing at Liverpool John Moores University revealed that three out of ten samples were catfish, sold as 'normal fish' or 'white fish'. Professor Stefano Mariani noted that this level of catfish was unusual.
Portions of catfish were sold for £3.80 to £5, while cod or haddock ranged from £4 to £6. Businesses are legally obliged to inform customers of the species if asked.
Industry impact
Scott Walker, chief executive of GB Potatoes, warned that the full impact of war-linked costs on potato prices will hit in 2027. The fish and chip shop industry also faces rising energy and cooking oil costs. National Trading Standards called it a food labelling issue, with the Food Standards Agency advising local authorities to investigate isolated cases.
