In 1940, Dairy Queen (DQ) was established in Joliet, Illinois, United States. It is a chain of soft serve ice cream and fast food restaurants. It belongs to a subsidiary of International Dairy Queen. Dairy Queen has its own unique belief that is to create happy memories for people. At the same time, it is constantly striving to become the most popular fast food restaurants in the world. Dairy Queen restaurants provide people with many delicious foods, such as shakes & malts, frozen blended coffee, ice, cold beverages, cakes, grill burgers, sandwiches, salads, snacks, etc. Especially they offer many different flavor beverages, so a number of people are fond of drinking. One of the most distinctive products is called Blizzard.