(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.
Cold pressing dramatically increases shelf life, and providing the oil is stored correctly, it can be kept for up to 12 months. Rancid Hemp Seed Oil is harmful. It is very important to store it correctly. Light, heat and air will damage your oil so keep it tightly capped in the refrigerator and consume within 10 weeks.