Castello cheeses cheese, named Noble Blue Cheese, Extra Danish Creamy Blue (also available sliced), Soft Blue, and Crumbled Blue Cheese. In 2012, the Denmark's Finest Havarti Cheeses were added to the Castello brand, followed by Saga Blue Brie in 2013. The Alps Selection Cheeses; Hirten, Bergkase, and Weissbier, were launched in the United States in the end of 2012, and were the first of their kind available in the United States. In some markets, the name Blue Castello is used for a triple-cream blue cow's milk cheese. Castello was established in 1893 by Rasmus Tholstrup of Denmark. His son, Henrik, bought a
Maytag Blue cheese of the Maytag founder. The farm has survived without advertising or a sales staff. In February 2016 Maytag issued three recalls with the FDA for possible contamination with Listeria monocytogenes, and subsequently stopped production and shipping for several months. In November 2016 operations resumed and a new fall catalog was issued. As of September, 2017, sales have resumed. The process for making Maytag Blue Cheese was discovered and patented in the United States by two Iowa State University microbiologists, Clarence Lane and Bernard W. Hammer. Roquefort, another type of blue cheese, had been made for hundreds of years in Europe,