Look for plump bananas that are evenly yellow-colored. Green bananas are under-ripe, while a flecking of brown flecks indicates ripeness. If bananas are too green, place in a paper bag until ripe. Adding an apple to the bag will speed the process. Store ripe bananas at room temperature. To prevent bruises, a banana hook or hanger is a great inexpensive investment. For longer storage, you can place ripe bananas in a tightly sealed plastic bag and refrigerate. The peel will become brown but the flesh will remain unchanged. One pound of bananas equals about 3 medium or 1-1/3 cups mashed.