Mica (Silver Leaf) and Ash
The middle layer
Indirect burning doesn’t torch the scent; a mica/silver leaf carries it above charcoal ash, heat passing evenly so the aroma is moister and longer.
How to use
Keep the leaf clean and uncracked, at a moderate distance. It’s the small key to "slow work, fine scent". Usage science.
Compiled for general knowledge; traditional references are cultural notes, not medical advice.
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