How to Read a Classical Incense Formula: A Guide to Xiangfang
You have just acquired a reproduction of a Ming dynasty incense formula and you are looking at the first recipe. It lists twelve ingredients, in order of descending weight, with names you half-recognise and some that are entirely unfamiliar. And then there is a phrase — something about the yang rising and the yin descending, or a reference to the emperor’s summer palace — and you realise that you are not merely looking at a list of ingredients. You are looking at a document that encodes years of accumulated knowledge, cultural references, and technical precision in a format that is entirely opaque to the uninitiated.
Learning to read a classical incense formula — a xiangfang (香方), literally “fragrance formula” — is the single most important skill in the hexiang tradition. Without this skill, you cannot access the knowledge contained in the classical texts. With it, you can read, understand, adapt, and eventually create your own formulas.
The Basic Structure of a Xiangfang
A classical incense formula has four components:
The name: Formulas are typically named for their intended effect, their primary ingredient, their creator, or a poetic reference. Qing Xin Xiang (清心香, Clear Heart Incense) tells you its intended use. Li Zhu Xiang (荔枝香, Lychee Incense) tells you its primary aromatic note.
The ingredient list: The list of aromatic materials, typically ordered by weight — the heaviest material first, the lightest last. This is important: the order encodes information about the relative proportions and the role of each ingredient.
The preparation instructions: How the materials should be processed before blending — whether to grind fresh or use dried, whether to soak in wine or vinegar, whether to age before use.
The usage instructions: When and how to burn the formula — the appropriate season, time of day, occasion, and method of burning.
Decoding the Ingredient List
The ingredient list in a classical xiangfang uses a specific system of measurement and notation.
Weights: Classical formulas use the traditional Chinese weighing system — jin (斤, approximately 500 grams), liang (两, approximately 37 grams), qian (钱, approximately 3.7 grams), and fen (分, approximately 0.37 grams).
The role of each ingredient: In classical formulas, each has a specific role:
- Jun (君, sovereign): The primary material — the one that defines the formula’s character
- Chen (臣, minister): The secondary material — supports and enhances the sovereign
- Zuo (佐, assistant): Modifies or moderates the effects of the jun and chen
- Shi (使, messenger): Guides the formula’s action to specific meridians
Understanding the Classical Language
Classical xiangfang texts use a technical vocabulary that requires specific knowledge to interpret.
Shang / Zhong / Xia (上/中/下 — superior/middle/inferior): A quality classification. “上等沉香” (superior agarwood) indicates the highest grade.
Pao / Zhi (炮/炙 — processing methods): Materials may be processed before use. Pao means roasting or parching. Zhi means roasting with liquid (often wine or vinegar).
Fan / He (焚/和 — burning/harmonising): Some formulas specify whether the materials are to be burned together as a blend (he) or separately in sequence (fan).
A Sample Formula: “Qing Xin Xiang”
沉香六錢 降真香四錢 乳香三錢 沒藥二錢 冰片一錢
右為細末，每以熱酒調服二分。
清心火，安神志。
Breaking this down: agarwood (jun — 6 qian), jiangzhenxiang (chen — 4 qian), frankincense (zuo — 3 qian), myrrh (zuo — 2 qian), borneol (shi — 1 qian). The formula is structured to clear heart fire and calm the spirit.
Frequently Asked Questions
Where can I find classical xiangfang texts?
The most important sources are the Lei Gong Pao Zhi (《雷公炮炙》), the Ben Cao Gang Mu (《本草纲目》), the Tian Xia Bin Gan Lu (《天咫槟榔录》), and the Xiang Lu (《香录》).
Can I directly reproduce a classical formula?
You can reproduce it as written, but the result may not match the original intent. Classical formulas assume materials of specific quality and processing that may not be available today. Start by understanding what the formula is trying to achieve, then adapt.