BI Answers: Why does grease make paper translucent? You might have wondered why a cheesesteak bag or a pizza box becomes slightly see-through when touched by its greasy contents. To understand why ...

With old grease stains, you can try one or more of these measures beyond those listed above: Blot up the stain with paper towels, then sprinkle with corn meal or baking soda. Leave it on overnight ...