That Baking Soda in Your Fridge Probably Isn't Doing Much
by Elizabeth Yuko from Lifehacker on (#6DSFD)

Deep in the back of many refrigerators sits a small orange box with one of the top corners torn off-or, in some cases, a bowl of white powder. That, of course, is (probably) baking soda, and it was placed there to absorb any food odors in the fridge.