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Coles, Woolworths, Aldi Tomato Products May Be Mislabeled, Investigation Finds

A Four Corners investigation commissioned forensic testing that suggests some tomato products sold at major Australian supermarkets, including Coles, may be mislabeled as Australian-grown when they actually originate from China.

Coles, Woolworths, Aldi Tomato Products May Be Mislabeled, Investigation Finds

Coles, Woolworths, Aldi Tomato Products May Be Mislabeled, Investigation Finds

The short answer

A Four Corners investigation commissioned independent forensic testing of hundreds of food products, including tomato items from Coles, Woolworths, Aldi, and independent retailers. The testing, conducted by Source Certain and other labs, found that some tomato products labeled as Australian-grown showed isotopic signatures consistent with Chinese origin. The findings raise serious questions about the integrity of Australia's food supply and the effectiveness of import inspections.

Why it's trending

The ABC News Four Corners investigation, published July 27, 2026, revealed that tomato products from major Australian supermarkets may be fraudulently labeled as Australian-grown when they are actually from China. This triggered widespread public interest and media coverage.

A Four Corners investigation has uncovered evidence that tomato products sold at Coles, Woolworths, Aldi, and independent retailers may be mislabeled as Australian-grown when they actually originate from China, according to independent forensic testing commissioned by the program.

The eight-month investigation, reported by Adele Ferguson, Chris Gillett, and Madi Chwasta, collated thousands of import records and commissioned testing from Source Certain, a forensic traceability lab that has worked with the FBI and Interpol. Products were purchased from multiple states and tested blind, with scientists unaware of brand identities.

The results raise questions about the integrity of Australia's food supply. The investigation also found that only a fraction of imported food is inspected, and testing for contaminants has declined since 2019. Honey is the only imported food routinely tested for adulteration, at a rate of 5%.

Bloomberg reported that retail giants rejected the report's findings, while News.com.au quoted experts calling the situation 'deeply disturbing'. The findings have sparked calls for stronger food labeling enforcement and increased import testing.

Timeline

  1. Four Corners investigation released

    ABC News publishes investigation revealing tomato products from major supermarkets may be mislabeled as Australian-grown but actually from China. (Source: ABC News)

Questions people ask

Which supermarkets are involved?

Coles, Woolworths, Aldi, and independent retailers. Products were purchased from these stores across four states.

What did the testing find?

Independent forensic testing by Source Certain indicated that some tomato products labeled as Australian-grown showed isotopic signatures consistent with Chinese origin.

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