Refrigerator Crisper Drawers

Most of the newer refrigerator crispers have humidity settings on the drawers that open or close a window in the drawer. For the low humidity setting the window is completely open; for the high humidity setting it is completely closed. Many people ignore them, or set them to the midway mark, but with proper settings you can prolong the life of your produce. It all has to do with how fruits and vegetables emit ethylene gas, and obviously separating the high-emitters from the low emitters:

Low Humidity Drawer (high ethylene gas emitters)

Apples
Grapes
Mushrooms
Peppers
Squash
Avocados
Pears

Medium Humidity Drawer (medium ethylene gas emitters)

Melons
Tomatoes
Sweet Potatoes
Lemons
Limes
Oranges

High Humidity Drawer (non-ethylene gas emitters)

Leafy Greens
Spinach
Lettuce
Broccoli
Brussel Sprouts
Cauliflower
Carrots
Green Onions