Danish scientists have developed a new method for identifying whether or not a potato is organic, thereby helping consumers avoid being duped. Researchers at the University of Copenhagen have devised an approach that looks at how organic plants are fertilised, as this provides a deeper, more accurate portrayal of whether eco-labelled produce is indeed organic. The method provides more details about on how a product was cultivated. Focusing on the isotope signature in a plant by isolating sulphate, a chemical compound can reveal how a particular plant was grown. Humans, animals and plants all have isotope signatures that provide information about the environment in which they live and what they consume.
Imported organic fruits and vegetables are susceptible to food fraud and the number of falsely eco-labelled produce is unknown because fertilisation methods remain untested.