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History A leaf and bud vegetable lettuce grew wild since Roman times, but it wasn't until the advent of refrigerated train cars that it could be commercially grown and marketed year-round. Select & Storage There are five types
crisphead,
butterhead,
romaine,
leaf, and
stem that are basic
ingredients of a wide variety of salads. All are related to the cabbage
family and are usually considered salad plants. In selecting, always
choose good quality, with clean, crisp tender heads, free from rusty
appearance. Store in crisper or plastic bags for 1 to 2 days only. Wash
salad greens in advance so that they can drain and crisp properly in the
refrigerator. Iceberg lettuce should be cored, held under water and
drained. The water helps to make the leaves easier to separate. Romaine
is torn or laid on its side and cut across with a knife. Bibb is prized
for its delicate flavor. Boston is a larger, looser head, and is usually
torn to use in tossed salads. Nutrition: 1 cup = 7 to 10 calories
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