Cheez Whiz is one of a number of "processed cheese foods", a category including some types of individually-wrapped cheese slices. These products contain regular cheese that has been reprocessed along with additional ingredients such as emulsifiers and stabilizing agents, such as xanthan gum or carrageenan. These products derive their tanginess and flavor from additional ingredients such as citric acid and flavoring compounds. Annatto is used for coloring.
The product has been sold in a narrow jar that tapered towards the base when sold as a spread. When Cheese Whiz is advertised as a dip or a sauce, the jars are larger and more of a squat cylindrical shape.
Cheez Whiz can also be found in "Handi Snacks", such as Ritz Cheez Whiz 'n' Crackers in Canada.
Cheez Whiz was reformulated in the early 21st Century to include both a changed formula, and a new, wider jar that allows dipping straight from the container. This new formula applies to the Cheez Whiz Light 15.5 oz and the Original Big Cheese 15 oz packages.