Colby is a semi-hard orange cheese made from cow's milk. it is named after the city of colby, wisconsin, where it was first developed in 1885 and quickly became popular. colby is manufactured in a similar process as cheddar cheese. instead of the cheddaring process, however, the whey is partially drained after the curd is cooked, and cold water is added to decrease the temperature of the mixture. traditionally, colby has an open texture with irregular holes and is pressed into a cylindrical form called a longhorn. the washed-curd process results in a cheese with a mild flavor that is moister and softer than cheddar. colby is typically used in snacks, sandwiches, and salads. derivatives in...

Source: Wikipedia