(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).
A refined coconut oil is separated by heat. Refined coconut oil is more heat-stable and can be used in cooking methods like frying. Many people opt for refined coconut oil because it is flavorless and odorless. The shelf life of a refined coconut oil, according to the expiration dates is 18 months to 2 years. A refined coconut oil loses some nutritional benefits but how much really depends upon the refining process that is used. Expeller Pressed: This is the traditional method of extracting coconut oil.