(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.
According to the Australian Tea Tree Industry Association, the shelf life of tea tree oil is around 6 months after it's opened, and up to two years when unopened. There are a few conditions though to keep in mind though. Tea Tree Oil, and most other essential oils like it cold. Think Tea Tree Oil on the rocks. You can significantly extend the shelf life of most essential oils by storing the oil in dark amber or cobalt blue glass bottles, or in stainless steel or lined aluminum bottles. Never Store Tea Tree Oil in Plastic...Ever!