In 2019 Friends of the Earth wrote to Aldi, Coles and Woolworths supermarkets asking them about pesticide use and vegetables. You can view our full letter here.
The most detailed response was given by Coles, with the least detail provided by Aldi..
Both Coles and Woolworths said that the Maximum Residue Level (MRL) for each residue is contained in the Australian New Zealand Food Standards Code, administered by Food Standards Australia New Zealand (FSANZ). Coles claimed that FSANZ conduct risk assessments on chemicals and deliberately sets the MRL’s very conservatively so there is no possibility of a consumer exceeding Acceptable Daily Intakes (ADIs).
Coles added that growers supplying Coles regularly test their produce through industry programs to ensure they do not exceed legal limits and that Coles conducts monthly independent surveillance verification testing of fresh produce through an accredited laboratory. Over the past 3 years, Coles has facilitated over 100,000 residue tests. No details were given about the results of any of these tests or compliance details as this information is confidential.
You can see their responses here.