An information campaign is underway to inform parents about the voluntary recall of two lines of infant formula that may be contaminated.
Fonterra revealed at the weekend that three batches of a whey protein used as an ingredient in some products are contaminated with a strain of a bacterium that may cause botulism.
The recalled Nutricia products include all batches of Karicare Stage 1 New Baby Infant Formula and Karicare Gold Plus Stage 2 Follow On Formula.
Food Safety Minister Nikki Kaye said on Tuesday says now that there is a recall across the two product lines, the Ministry for Primary Industries is assisting Nutricia to ramp up public information.
Ms Kaye said the campaign would include national and social media advertising to make sure parents and caregivers have all the information they need.
Nutricia said on Monday that none of the products tested and sold in New Zealand indicate any contamination.
Meanwhile, the Infant Formula Exporters Association says Fonterra has cast a shadow over the rest of the industry by not immediately naming the eight clients to whom it sold contaminated whey powder nor naming the affected products.
Association chair Michael Barnett, who is also chief executive of Auckland's Chamber of Commerce, said the scare has put the investments of small and medium baby formula-making businesses at risk.
He also says that Fonterra's silence over the clients that bought the whey powder and the products containing it means anybody exporting dairy-related products from New Zealand is at risk of losing business.
