丹房須知
造炭七

造炭七

造炭七

火龍經曰：葛仙翁云：燔堅於淨窑中爲炭木，臼杵之萬下，糯米拌和，搗丸如雞子大，曬乾，烈爐預焚令通紅光，稱斤兩旋旋進火。若一候用一兩者，旦夕常令數足。

End of chapter
取土六添水八

Text and scans: Shidian Guji (Peking University – ByteDance open ancient texts). Edition details are given per book. Shidian Guji

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