iceberg lettuce

Iceberg lettuce (Lactuca sativa var. capitata) is a cultivated variety of common lettuce native to the Mediterranean region, now widely grown throughout temperate climates worldwide. It forms a compact, spherical head composed of pale green to white, densely packed leaves with a crisp texture and mild, slightly sweet flavor. The variety was developed in the United States in the early 20th century and derives its name from the practice of shipping the lettuce packed in ice. The leaves are thin, waxy, and translucent with prominent veining, and the head can weigh between 500 grams and 2 kilograms depending on growing conditions and cultivar.

Iceberg lettuce is primarily used raw as a base for salads, particularly in American cuisine, where it serves as the foundation for classic preparations such as the Cobb salad and wedge salad with blue cheese dressing. Its crisp texture and mild flavor make it an ideal complement to other salad vegetables and vinaigrettes. Beyond salads, iceberg lettuce is employed as a wrapper for various preparations, including Asian lettuce cups and tacos, where its sturdy leaves provide structural integrity. The outer leaves are sometimes braised or used in soups, though cooking diminishes the signature crispness for which the variety is prized.