Key limes are a small, oblong lime with a smooth yet leathery rind that has "pores." The rind will deepen in its green color, with a hint of pale yellow as it ripens. Key limes are tart and acidic, yet floral. Key limes are available year-round, with peak season from late summer to early winter. As with other citrus fruits, key limes have vitamin C along with other antioxidants. The rind has essential oils that are released when grated.
Ripening and Storage:
Key limes are ready when you receive them. Store in a cool, dark, dry place for up to two weeks to maintain its bright flavor, or in the refrigerator for up to two weeks. Key lime wedges or slices should be stored in the refrigerator for up to five days.
Key limes are typically used as a garnish or as an ingredient in sweet and savory applications. Slice them in wedges or width-wise.
Most popularly used in cocktails featuring lime such as mojitos, or in key lime pie, key limes also can be used in jams, jellies, marinades, sauces, and other baked goods and desserts. They also make a great garnish to Mexican dishes such as tacos, ceviche, and anywhere its acidity is desired.