Key lime is a small kind of lime with a green or yellow skin. It’s the ingredient for zesty key lime pie dessert. You will be able to recognize key lime for its small, round shape and green to yellow color. Key lime can be found in drinks, jams, and marinades for fish and meat. While smaller than lemons, key limes have a stronger aroma and an intensely sour taste. Delight your senses with this fruit’s refreshing citrus taste with our key lime e-liquid.