Castello cheeses remarkable popularity both in Denmark and abroad.” Castello was acquired by Arla Foods, who expanded Castello into cheese markets in North America. Castello blue cheeses were developed in the 1960s. The curds are dipped into salt water, drained, and put into molds. The cheese is punctured with tiny holes and then brought into the ripening room, where it stays for about 15 days. It is then washed, cut, packed, and put in a "cooling room" for about a week at a temperature close to freezing. The washed rind hosts various molds that add to the cheese's mildly spicy flavor. It
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,