Aji Crystal chili peppers are straight or slightly curved, and have an elongated, conical, and tapered shape. The smooth, waxy, and somewhat wrinkled skin is light green when young, transforming to pale yellow and then orange-red when mature. Underneath the medium-thick skin, the flesh is crisp and aqueous, encasing a central cavity filled with many small, round, cream-colored seeds. Aji Cristal chili peppers have a subtle citrus flavour and are often harvested young when they are light green-yellow and when the heat is less intense. When bright orange-red and fully ripe, the peppers develop a much hotter level of spice and the citrus flavours deepen into a smokier, fruity taste.