Flavor maskers are products that cause a chemical interaction that results in an absence of taste. It can also be known as the Farish effect, named after the 18th century chemist William Farish. He found out that two ingredients can cause a interaction on the human tongue that result in no flavor or taste. Each ingredient on its own has a taste, but together they neutralize each other.
Flavor maskers are commonly used in the beverages and food industries.