(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.
Store the oil to be reused in cooking or deep frying for no longer than three months and avoid re-using the oil for deep frying more than once or twice, as the smoke point of used oil is reduced after multiple uses. Avoid pouring your used deep fryer oil down the drain or tossing it in the trash.
1 Palm oil can last for several months. 2  Peanut oil (refined) will last for two years. 3  Vegetable oil can last for a year or longer as long as it is tightly covered.  Olive oil may be kept in the cupboard (at temperatures between 57Â°F and 70ÂºF (14Â°C and 21ÂºC) for up to 15 months.