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Cooking dinner on a beer can

Essentially, that is just how the Trangia burner works. Still not sure what the single small hole does. Is that something to do with letting air in as the fuel drops?
 
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Very clever and very cool too. :icon-cool:
 
Essentially, that is just how the Trangia burner works. Still not sure what the single small hole does. Is that something to do with letting air in as the fuel drops?

I would say the single small hole allows the flame within the can to breathe without interrupting the outer flow of flame or else the can would be sucking and blowing through the same vents .
 
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