Food Fraud Still Affecting Economy Despite Technological Advances

Food fraud remains a largely underreported criminal activity, making accurate assessment of its scope particularly challenging. The practice encompasses various forms of adulteration, including ingredient dilution or substitution, document falsification and the employment of unauthorised production processes. Recent estimates for 2025 suggest that food crime exacts a toll of approximately £81 billion on the global economy annually.

Criminal operators typically focus their attention on widely consumed staples such as dairy products alongside premium items including olive oil. Honey ranks amongst the most frequently counterfeited foodstuffs, sharing this distinction with alcohol, seafood and edible oils. Plant-based syrups, such as glucose syrup derived from sugar cane, can cost half the price of authentic honey or considerably less, creating substantial profit margins for fraudsters.

Dr Juraj Majtán, who maintains five beehives and directs a laboratory studying apian biology at the Institute of Molecular Biology within the Slovak Academy of Sciences, possesses intimate knowledge of honey’s biological complexity. The substance contains hundreds of compounds, with numerous distinct varieties and botanical sources. This complexity renders detection of adulteration exceptionally difficult, as determining whether a jar’s contents genuinely originate from honeybees in a specific location or has been blended with syrup derived from rice, wheat, maize or sugar beet presents significant challenges. The absence of an internationally recognised definition of honey compounds these difficulties.

Whilst counterfeit honey occasionally exhibits lower viscosity and diminished flavour profiles compared with genuine products, sophisticated imitations can replicate the appearance, aroma and taste of authentic honey with remarkable accuracy. Chemical analysis frequently fails to identify fraudulent honey owing to similar sugar concentrations. Various testing methodologies exist, including chemical bond analysis compared against authentic samples and isotope analysis to determine probable geographical origin. However, as Dr Majtán emphasises, no singular method currently exists that can definitively identify fraudulent honey. He stresses the urgent requirement for novel detection approaches.

Whilst adulterated honey primarily damages beekeepers’ livelihoods, food fraud can pose serious health risks through the presence of undeclared allergens or toxic compounds. The 2008 melamine contamination scandal in China, which resulted in at least six infant deaths from kidney damage, exemplifies these dangers. Dr Selvarani Elahi, the UK’s deputy government chemist based at measurement and testing services provider LGC, was caring for her newborn daughter during the scandal and found it incomprehensible that criminals would target children. Two individuals connected to the contamination faced execution, yet such severe consequences have not deterred subsequent fraudulent activity.

With several decades of food standards experience, Elahi maintains vigilance regarding potential fraud in emerging food categories. LGC currently advises the UK government and develops DNA methodologies to identify foods containing the four insect species approved for human consumption. Fraudulent substitution with unapproved species could trigger allergic reactions in individuals with shellfish allergies, owing to shared allergenic proteins.

Spice adulteration represents a persistent global challenge. Industrial dyes are frequently added to paprika, whilst lead chromate mixed into cinnamon to enhance colour or increase volume has proved particularly problematic. In 2023, hundreds of American children suffered lead poisoning from imported cinnamon incorporated into applesauce products. According to Elahi, technological detection capabilities for industrial dyes in spices are sufficiently robust to identify synthetic compounds at low concentrations. The fundamental issue lies in inadequate surveillance by under-resourced regulatory authorities.

Dr Karen Everstine, technical director of food safety solutions at FoodChain ID, which provides advisory services to food sector clients, observes that the lead contamination incident demonstrates the importance of both regulatory agencies and well-functioning public health systems for detecting anomalies and supporting food safety. FoodChain ID frequently encounters fraud involving species substitution. The company’s 2025 data revealed a modest increase in labelling fraud, including olive oil falsely designated as extra virgin and conventional crops marketed as organic. Everstine expresses particular concern regarding trendy superfood and supplement-like food products in 2026, as false claims proliferate rapidly through social media channels before effective countermeasures can be implemented.

Rigorous traceability solutions, including QR codes and microchip technology, prove ineffective unless consumers actively verify them before purchasing. Counterfeiters can readily falsify QR code labels. These technologies also remain prohibitively expensive for widespread implementation. Elahi notes that blockchain technology, once anticipated to revolutionise food industry accountability, has failed to fulfil its promise. Whilst blockchain-based supply chain tracking might prove feasible for single-origin products such as South American bananas, it becomes impractical for composite products like lasagne containing 50 ingredients sourced globally. Interpreting test results from finished products with numerous ingredients presents additional challenges.

Everstine identifies a fundamental difficulty in reconciling high-technology innovation with food production realities. Universal testing remains impractical. Recent innovations in testing sophistication include thermal imaging, laser-based light analysis and DNA profiling. These enhanced methodologies generally increase costs. Laboratory-based testing may lack the speed and agility required to support border control personnel, fraud investigators or field-based food producers. Rapid intervention proves crucial for preventing tainted food distribution, yet expedited testing tools may sacrifice sensitivity. Emerging portable testing methods include X-ray fluorescence analysers for turmeric and handheld DNA kits for olive oil authentication.

Machine learning increasingly contributes to data processing and categorisation, facilitating early warning systems for fraudulent or unsafe food products. Nevertheless, relatively unsophisticated responses to food crime retain considerable utility. Regarding honey, Majtán recommends purchasing directly from local beekeepers to ensure consumers understand their purchases and the beneficiaries of their expenditure. Everstine suggests that suspiciously low pricing should raise concerns. For instance, olive oil or honey priced at three dollars per bottle in the United States warrants scepticism.