(AP) -- Phil DeVore pulls a folded piece of aluminum from a murky pond. The aluminum looks like a piece of siding that's blown off a building, but DeVore knows it's much more valuable than that. He slips a rubber band off the aluminum and unfolds it. He likes what he sees -- 50 or 60 glistening black leeches. They're your common ribbon leeches, Nephelopsis obscura to aquatic biologists.
After its initial use, cooking oil can be refrigerated or frozen and reused for another six hours of cooking (see References 2). Don't reuse cooking oil if it smells rancid or you can't heat it without smoke developing, as this indicates significant deterioration (see References 1 and 4).
Reusing Cooking Oil. 1  1. Freeze your cooking oil. After you have put your cooking oil into a container, you can freeze it. 2  2. Reuse the cooking oil for another meal. Oil can be used for frying several times over, as long as you filter it between uses (which means straining it to get all the little bits of food out, among other things.)