Our key lime rind comes from Mexico, one of the world's primary growing regions for key lime, where the fruit is harvested between the months of March and November. We have two types of pure key lime rind oil in the Ffern palette - one extracted by cold press expression and one by steam distillation. The distilled oil is sparkling, green and zesty, while the cold pressed oil is has a terpenic edge, giving it the true scent of just cut limes.