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Efficiency, mostly The fire should be able to burn very hot. Less fuel is needed (faster cooking). Produces less smoke. Less susceptible to wind. Light is shielded. Easy to cover up to extinguish...
Answer
Efficiency, mostly The fire should be able to burn very hot. Less fuel is needed (faster cooking). Produces less smoke. Less susceptible to wind. Light is shielded. Easy to cover up to extinguish...