“Alternatively, consume after heating to 70C and holding at this temperature for one minute.
“If you don’t have a thermometer, heat the milk until it nearly reaches a boil - or scald the milk - before drinking it.”
Food Safety’s acting deputy director-general Jenny Bishop said listeria can make people sick.
”Listeriosis infection can be serious among vulnerable groups, such as pregnant women and their unborn babies, newborn babies, people with weakened immune systems and elderly people,” she said.
”For those in the high-risk groups, listeriosis typically has an incubation period of three to 70 days, with an average 21 days, before symptoms appear.”
Healthy adults are likely to experience only mild infection, causing mild diarrhoea and flu-like symptoms.
”If you have consumed this product and have any concerns about your health, seek medical advice,” Bishop said.