Lettuce doesn't really tolerate being messed with. It is practically immune to any kind of preservation attempt: it can't be frozen, canned, dried, or pickled.

 Since lettuce was incorporated in the religious practices of the Egyptians and was often depicted in their ancient art, it is easy to follow the history of the vegetable. Its origin was traced back to the Eastern Mediterranean basin. From there, it travelled throughout the Roman and Greeks empires and their provinces. Having a salad with dinner was a common healthy habit that started during this time period and perseveres till this day. The demand for this vegetable continued and thus, from the 16th through the 18th centuries, many varieties of lettuce were being cultivated. The early settlers introduced it to America, and by the late 1900s lettuce was being consumed throughout the world.

California and Arizona are the largest producers of lettuce in the United States. In fact, iceberg lettuce's name comes from the practice that California growers adopted in the 1920s of shipping them covered with a heap of crushed ice.  Here are some of the most well-liked varieties:

  •          Iceberg Lettuce
  •          Romaine Lettuce
  •          Butterhead Lettuce
  •           Frisee Lettuce