Stevia plants growing outdoors
Food - Drink
Why Stevia May Make Coffee Taste More Bitter
By JESSIE MOLLOY
Coffee, beans, and sweetener sitting on an ivory counter
While stevia performs well as a sugar substitute in certain recipes, and it can even be used to sweeten drinks, there's a reason why it doesn't work when added to coffee.
Close-up of green stevia plant
A raw stevia plant contains compounds that are 200 to 300 times sweeter than sugar. The FDA only permits one of these compounds to be used in food and drink: Reb-A.
Bowl of stevia crystals next to a wooden spoon
Reb-A, which is made into a sweetener and marketed as stevia in the U.S., contains chemicals that trigger your tongue’s sweetness receptors as well as its bitterness receptors.
Hand holding a packet of Sugar In The Raw brand stevia product
Since coffee is already bitter, it doesn't pair well with American stevia products. Reb-A amplifies the bitterness of the drink, rather than simply sweetening it like sugar does.
Spoon of stevia crystals next to a green leaf
Most stevia products and recipes actually use a blend of stevia and sugar or other sweeteners, but even a smaller amount of Reb-A can make your coffee more bitter than you'd like.