As the name implies, this variety has loose leaves that are broad and curly. It has a delicate taste and slightly crispy texture. Bunches of lettuce should be checked for insects and the leaves having roots should be placed in a glass of water with a bag over the leaves and stored in the refrigerator. The most difficult part about storing lettuce is maintenance of moisture level. Too much moisture suffocates the lettuce leaves due to condensation, causing the lettuce to spoil faster.