Aldi's Receipt Scanning Trial Raises Questions on Chemical Safety
The German supermarket chain Aldi has introduced a trial requiring customers to scan their receipts before exiting through its self-service security gates. While the move aims to reduce theft, it has also brought attention to the materials used in modern receipts and the potential health concerns associated with them.
What is the new security feature at Aldi?
Under the new system, shoppers must present a proof of purchase to exit the store. Previously, receipts were not automatically printed, which means the trial could generate additional paper waste. Aldi has clarified that customers may opt out of printing a receipt, and staff are available to assist those who wish to leave without one.
Are chemicals in receipts a health risk?
The concern stems from the historical use of Bisphenol A (BPA), a chemical once common in thermal paper and plastic products. Research has shown that small amounts of BPA can be absorbed through the skin. The European Union has banned BPA in food packaging and extended that ban to receipts, but Food Standards Australia and New Zealand have concluded that current exposure levels do not pose a significant health risk.
Oliver Jones, a professor of analytical chemistry at RMIT University, downplayed the risks. He noted that the amount transferred through skin contact is minimal, even for those handling receipts all day. He added that the risk is proportionally small compared to other lifestyle factors, and suggested gloves as a precaution for those concerned.
What chemicals do supermarkets use now?
Many companies that abandoned BPA switched to a similar compound, Bisphenol S (BPS), though experts say less is known about it. Aldi has confirmed its receipts contain neither BPA nor BPS but has not disclosed the exact chemicals used. Other retailers, including Kmart and Bunnings, have stated their receipts are BPA-free but have not specified the alternatives.
The uncertainty over replacement chemicals remains a point of concern for some consumers. History has shown that substances once considered safe, such as PFAS and DDT, were later found to pose risks. This has led to a cautious approach among those who prefer to know exactly what they are handling.
What should consumers do?
For now, experts advise that the risk from handling receipts is minimal. Those who remain concerned can request digital receipts or wear gloves. As the trial continues, Aldi has committed to guiding customers through the process of exiting without a printed receipt.
This development serves as a reminder that convenience and safety must be balanced, and that transparency from retailers is valued by the public.