(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.
These include infusing the oils on the stove top, in a Crock-Pot and cold infusion. When infusing oils with heat, such as on the stove or in a Crock-Pot, the process takes anywhere from 20 minutes to 4 hours. The time will depend on how hot your oils are and how concentrated youâd like the infusion to be. With cold infusion, herbs are added to room temperature oil and set aside for 4-6 weeks.