The consumer watchdog is suing the maker of the high-tech Thermomix cooking appliance for allegedly failing to report a number of serious burns from its devices by the required deadline.
The Australian Competition and Consumer Commission (ACCC) has launched Federal Court action against the company.
ACCC acting chairwoman Delia Rickard said it was also alleged that Thermomix misled customers about their consumer guarantee rights about the appliance.
The kitchen devices are marketed as high-end kitchen products at a cost of more than $2,000.
Ms Rickard said it was alleged the company engaged in misleading conduct regarding the safety of the TM31 model, and there was concern around "misleading statements about the nature of a recall on the model that really downplayed the seriousness of the incident".
TM31 owners should look for the green seal.
Ms Rickard said it was important for people who have the Thermomix model TM31 to make sure they have a "green seal" and follow proper safety instructions.