American cheese is a kind of processed cheese. Usually, it has a mild taste. Originally, it was made by mixing other kinds of cheese, most often Colby and Cheddar. Much like the other processed cheeses, it is no longer produced by mixing existing kinds of cheeses, but by using a number of ingredients. In many countries, processed cheese is different from "real" cheese. American cheese may therefore not be sold as "cheese", but as "processed cheese". In the label, the word cheese is often left out, and the product is labeled "American slices", "slices" or similar. Since this kind of processed cheese is very common in the United States, it is often used to refer to all kinds of processed cheese.