On its website, Fonterra reported that no products with the Fonterra brand are affected by the botulism bacteria. The company markets and sells a number of commercial ingredients under the label NZMP. "The three specific batches of WPC80 produced at a single New Zealand manufacturing site, which were identified by Fonterra in its initial announcement, are the only NZMP ingredients affected by this quality issue," the company wrote on its website. Some of the customers who bought affected product from Fonterra received a finished product manufactured by Fonterra, while others just received the affected WPC80 as an ingredient. The contamination was reportedly caused by unsterilized pipes at a dairy factory in Waikato.