As you may know, some places will offer special deals for customers who purchase a certain amount of food or drinks. One popular restaurant that does this is 5 Guys Burgers and Fries. They often offer a deal on "Famous Fives." For example, if you spend $5 on fries or burgers, they will give you free fries as well. This offer has been going on since the 1980s and it’s meant to increase customer satisfaction with their products. According to 5 Guys Burgers and Fries, the "special" fries are made with potatoes, cornflour, and cornstarch. They are fried at a reduced temperature of 275 degrees Fahrenheit to make them crispy on the outside and soft on the inside.