(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.
Storing Used Oil. Used oil can be successfully stored in a cool, dark place for up to a month. Refrigeration or freezing increases the oilâs lifespan by several months. The oil may become cloudy during storage but this is not harmful and the oil will become clear upon reheating.
There are quite a few kinds of vegetable oils, like soybean oil, sunflower oil or peanut oil. Their shelf life, however, is quite similar to one another. As long as your vegetable oil is unopened and stored properly, it should be fine for at least two years, probably for a lot longer. Once youâll open the bottle, the oil in it should be fine for at least a year. If youâll store vegetable oil the right way, youâll prevent it from going bad for a longer period of time, even much longer.