Definition: 雪中春信 (“Xue Zhong Chun Xin,” “Snow in Spring”) is a classical 合香 recipe traditionally attributed to Su Shi (苏轼) — an attribution that is a romantic legend, not documented fact. Its signature is a camphor (樟脑) “snow” note set against warm woods, evoking the moment winter turns to spring.
Key facts: The 香乘 records the formula with variations. Its value as a study object is the 佐 (assistant) role — camphor is not the main scent, but it is the ingredient that names the blend.
The Recipe (香乘 version)
香附子四两、鬱金二两、檀香一两、麝香少许、樟脑一钱、羊脛灰四两 — four liǎng cyperus (香附子), two liǎng turmeric (鬱金), one liǎng sandalwood (檀香), a trace of musk (麝香), one qián camphor (樟脑), and four liǎng sheep-shin-bone ash (羊脛灰). Grind fine, bind with refined honey, age (窨), and burn in the usual manner. The 香乘 records this version alongside others (below).
| Role | Ingredient | Job in the blend |
|---|---|---|
| 君 (chief) | 檀香 sandalwood | The woody body of the scent |
| 臣 (minister) | 香附子 / 鬱金 cyperus, turmeric | Warm, faintly herbal middle tones |
| 佐 (assistant) | 樟腦 camphor | The cool, sharp “snow” note — the cold snap that makes it “winter” |
| 使 (guide) | 麝香 + 羊脛灰 + honey | Musk fixes and lifts; ash and honey bind the powder |
The Recorded Proportions (Both Versions)
The 香乘 gives 雪中春信 in at least three forms. Two are cleanly legible with full proportions:
Version A (the camphor-forward form, matching the ingredients above):
| Ingredient | Quantity |
|---|---|
| 香附子 (cyperus) | 四两 (4 liǎng) |
| 鬱金 (turmeric) | 二两 (2 liǎng) |
| 檀香 (sandalwood) | 一两 (1 liǎng) |
| 麝香 (musk) | 少许 (a trace) |
| 樟脑 (camphor) | 一钱 (1 qián) |
| 羊脛灰 (sheep-shin-bone ash) | 四两 (4 liǎng) |
Version B (the agarwood-forward form):
| Ingredient | Quantity |
|---|---|
| 沉香 (agarwood) | 一两 (1 liǎng) |
| 白檀 (sandalwood) | 半两 (0.5 liǎng) |
| 丁香 (clove) | 半两 (0.5 liǎng) |
| 木香 (costus) | 半两 (0.5 liǎng) |
| 甘松 (spikenard) | 七钱半 (7.5 qián) |
| 藿香 (patchouli/herb) | 七钱半 (7.5 qián) |
| 零陵香 (tonka/mellilot) | 七钱半 (7.5 qián) |
| 白芷 (angelica) | 二钱 (2 qián) |
| 回鹘香附子 (Uyghur cyperus) | 二钱 (2 qián) |
| 当归 (angelica root) | 二钱 (2 qián) |
| 麝香 (musk) | 二钱 (2 qián) |
| 官桂 (cassia) | 二钱 (2 qián) |
| 槟榔 (areca nut) | 一枚 (1 piece) |
| 荳蔻 (cardamom) | 一枚 (1 piece) |
Version B shows the same logic — a wood body with a camphor note — built on a much wider herbal and spice base. The two versions are the reason this recipe has no single “correct” form: the 香乘 itself preserves the disagreement.
Unit conversion: the recipes use historical Chinese weights. One 两 (liǎng) was on the order of 37 g in the Song–Ming period (the exact gram value varied by dynasty, roughly 31–41 g across periods), divided into 10 钱 (qián) of about 3.7 g each, each 钱 into 10 分 (fēn) of about 0.37 g. Because the gram value of the 两 shifted over time, read the ratios — e.g., Version A’s cyperus-to-sandalwood ratio of 4:1 — not the gram conversion.
Why the “Snow” Note Matters
Camphor is a cool, sharp, almost mentholated note. Placed against warm sandalwood and herbal tones, it reads as a cold snap against warmth — the compositional trick that turns a wood blend into “snow in spring.”
This is the cleanest lesson in the 佐 (assistant) role: the assistant is rarely the loudest ingredient, but it is the one that gives the blend its name and identity.
The Honest Caveats
- The Su Shi attribution is legend. The “seven years collecting plum-blossom snow water” story is a romantic invention, not a verifiable source.
- Multiple versions exist. The 香乘 itself records variant formulae; sources do not agree on a single “correct” recipe.
- Historical weights vary. 两 and 钱 had different gram values across dynasties — read the ratios, not the exact weights.
The Author’s Take
Position: 雪中春信 is best read as a lesson in restraint — a single cool note doing the work of an entire name — not as a literal Su Shi recipe.
Reasoning:
- The attribution myth obscures the actual craft, which is a textbook use of the assistant role.
- Chasing the “authentic” formula is a dead end; the versions genuinely differ.
This is the author’s editorial view and experience — not a verified fact.
Verification Notes
- The formula and the camphor “snow” reading are drawn from 香乘 (Xiang Cheng) via ctext.org and 识典古籍.
- The Su Shi attribution is flagged as legend; no therapeutic claim is made.
See Chinese Incense Recipes (香方): Translated from the Classical Manuals for the full guide.
FAQ
Q: What does 雪中春信 mean?
Literally “snow in spring” (雪中春信), and the name describes what the blend is meant to evoke: the moment winter turns to spring, rendered as a cool “snow” note over warm woods. The effect comes from camphor (樟脑), a sharp, almost mentholated note set against sandalwood and herbal tones, reading as a cold snap against warmth. The name is the recipe’s identity — it promises a seasonal image, and the formula delivers it through the contrast between the camphor’s chill and the wood’s warmth.
Q: Did Su Shi really create it?
The attribution is traditional but unverified. Su Shi (苏轼) is famous in incense lore for the romantic story of collecting plum-blossom snow water over seven years to make this blend, but that story is a later invention, not a verifiable source. The formula survives in Ming-era manuals like the 香乘, compiled long after Su Shi’s time, and those manuals themselves record multiple versions that disagree. So the page treats the Su Shi link as a legend — an evocative label attached to a recipe whose actual craft, not its supposed author, is what matters.
Q: What makes it smell “snowy”?
Camphor (樟脑). Camphor is a cool, sharp, slightly mentholated note, and when it is placed against warm sandalwood and the herbal middle tones of cyperus and turmeric, the contrast reads as cold against warmth — a “snow” note. This is the recipe’s signature and the cleanest lesson in the assistant (佐) role: camphor is not the loudest or most abundant ingredient, but it is the one that gives the blend its name and identity. The cold snap is a compositional effect, built by placing one cool material inside a warm structure.
Q: Can I make it today?
In principle yes, but with caveats. The 香乘 records at least three versions with different ingredients and proportions, so there is no single “correct” formula to follow — Version A is camphor-forward on a cyperus-turmeric-sandalwood base, while Version B is built on agarwood with a wide herbal and spice array. Musk (麝香) is restricted, scarce, or unavailable in most places, and many modern reproductions substitute or omit it. Treat the recipe as historical study: read the ratios and the structure, not a precise gram conversion, and expect to adapt.
Sources
- 香乘 (Xiang Cheng), 周嘉胄 (Ming), 卷十八 — the primary formula (multiple recorded versions). Full text on Wikisource.
- 本草綱目 — the materia medica documenting camphor, sandalwood, cyperus, and the formula’s other materials. Full text on ctext.org.
Related Resources
Natural next step: see the structural principle at work in the 合香 blending system.