Dr Gusto Caramel Food FlavorDr Gusto Caramel Food Flavor Dr Gusto Caramel Food Flavor It is used to give smell and taste to the foods you will prepare flavoring or to reinforce the smell and taste. Food flavoring is also known as food essence. Apart from food, it is also used to give aroma and odor to beverages. The number of drops you will use changes according to the density you want. It is for food use. It is 40 grams.