ROMAINE LETTUCE

24 pieces Romaine Lettuce aka "Cos", "Chang-Sheng-Cai", "Luo-Ma-Sheng-Cai", "长生菜", "罗马生菜", "長生菜", "羅馬生菜" Romaine lettuce has an elongated, almost loaf-like shape, with dark-green outer leaves that ripple along the edges. The center leaves fade to lighter green and yellow. Romaine lettuce has a refreshing crisp with a slightly bitter taste. It is a popular ingredient for salads, wraps, and sandwiches. Romaine lettuce is available year-round. Handling Tip Selection Romaine lettuce has no signs of yellowing and wilting. Leaves have no bruises and stem without brown spots. Storage Romaine lettuce should be stored as close to 32°F (0°C) as possible with a relative humidity of ninety-eight to a hundred percent and light mist. The typical shelf life is up to four weeks. High humidity is important to avoid loss of moisture and wilting. Romaine lettuce is sensitive to ethylene, a naturally occurring gas that regulates ripening. Romaine lettuce should not be stored with high ethylene-producing products to extend shelf life and avoid russet spotting and leaf yellowing. Romaine lettuce produces a low level of ethylene. Romaine lettuce is not sensitive to chilling injury but is easily damaged by freezing. The freezing point for Romaine lettuce is 31.6°F (-0,2°C) must be avoided. Freezing injury symptoms include dried and translucent leaves.