This DIY forever copper candle can burn indefinitely, and all you need to do is just add fuel. How does it work? A copper tube basically houses a high-temperature carbon wick that stays saturated with fuel.
When the fuel burns, the wick material doesn’t, while the inner pipe extends further with several holes in each one for fuel as well as air flow. The extended section is the candle’s flame. You won’t need any exotic fuel(s) either, just plain alcohol, just like the old burner in some chemistry sets.
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For anyone asking how to extinguish the flame. Use a glass, ceramic, or metal cup that is deep enough to encapsulate the wick and pipe and a diameter that would be less than the lid. Set it upside-down on the lid. The flame will go out in seconds. To keep it from evaporating or being flammable when you don’t want it to be, you’ll need some sort of lid that will seal around the jar lid,” said one commenter.
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