Romaine is distinguished by its elongated head and long, narrow leaves. These leaves are dark green and have a coarse texture. Romaine leaves are quite firm and have distinctive ribs. Romaine lettuce is crisp in texture and has been traditionally called ‘cos’ lettuce.
Romaine is rich in nutrients such as vitamin A, vitamin K, folate, and molybdenum. It is a good source of dietary fiber. This lettuce has an extremely low calorie content and high water volume. Romaine is a ‘heart-healthy’ green and can prevent the oxidation of cholesterol.
Temperature:Romaine is very heat tolerant, but is also easily damaged by temperatures that are too cold. 41 degrees is optimum storage temperature.