Diet Coke
Diet Coke does not use a modified form of the Coca-Cola recipe, but instead an entirely different formula. The controversial New Coke, introduced in 1985, used a version of the Diet Coke recipe that contained high fructose corn syrup and had a slightly different balance of ingredients. In 2004, Coca-Cola introduced Coca-Cola C2, which it claims tastes much closer to Coca-Cola but contains half the carbohydrates. In 2005, the company introduced Coca-Cola Zero (replaced by "Coca-Cola Zero Sugar" in 2017), a sugar-free variation of regular Coca-Cola.
Coffee flour
There are concerns surrounding the taste of coffee flour. These relate to whether its taste disrupts the flavor of cooked dishes. Both companies claim their products do not have a strong coffee taste. Coffee flour, on one hand, is said to have a blend of earthy, dark, bittersweet, cocoa, floral, and fruity flavor. The smell is similar to that of tobacco. When made into a cookie, the dough that is made with this particular type of flour tastes unlike a traditional sugar cookie. The flour, instead, contributes to the texture of the cookie, added graininess that would be suitable in making gingersnaps. By May 2018, Coffee Flour had been experimenting and testing its compatibility in blending with sauces that taste good with meat. On the other hand, the Brandeis coffee flour has a milder taste, also described as nutty.