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Japanese Plum

매실 (梅實) · Prunus mume (Siebold) Siebold & Zucc.
Thirst-relieving herb Neutral Sour Liver, Spleen, Lung
NatureNeutral
TasteSour
MeridiansLiver, Spleen, Lung
Part usedFruit
FamilyRosaceae
CategoryThirst-relieving herb
Find by concern: Thirst

Overview

Plum is the source of maesil-cheong and maesil-cha found in nearly every Korean household, and the Donguibogam records the exact traditional method still used today for the smoked, dried form prized in medicine: yellow plums smoked over fire become the dark "crow plum" (烏梅), while salt-cured ones become "white plum" — each recorded as its own remedy with richer effects than the raw fruit.

In the Donguibogam

東醫
寶鑑
性平, 味酸, 無毒. 止渴, 令人膈上熱.
Source: Donguibogam, Tangaek-pyeon (Herbology volume)
TranslationIts nature is neutral, its taste sour, and it is non-toxic. It stops thirst, though it can cause heat above the diaphragm.

Traditional functions

  • Relieves thirst
  • Generates fluids

Traditional applications

  • Thirst
  • Dry mouth

Traditional preparation

Eaten fresh in moderation, or processed into umeboshi-style salted plum, smoked "crow plum," or plum syrup (maesil-cheong).

Cautions

Caution: The Donguibogam itself warns that eating the raw fruit in excess is sour enough to damage the teeth and bones and provoke deficiency-heat — moderation matters even for this everyday fruit. Consult a professional.

Frequently asked questions

What is the difference between this entry and "omae" (oh-mae)?

Omae (烏梅, smoke-dried plum) and baekmae (白梅, salt-cured plum) are recorded as separate sub-entries with richer, more varied effects — resolving phlegm, stopping vomiting, and countering alcohol toxicity — distinct from the plain raw fruit covered here.

Is this the plum used for maesil-cheong (plum syrup)?

Yes — the same fruit. The Donguibogam records both the raw fruit's simple thirst-relieving effect and the more elaborate processed forms still used in Korean kitchens today.

Sources

  • 동의보감 탕액편 (원문) — 한문 원문 발췌 — 한의학고전DB 탕액편 대조 검증 완료 (DATA-001)
  • 한의학고전DB (mediclassics.kr) — 국역 참조 후 자체 재서술 (LEGAL-001)
DonguiHub is an educational and informational platform about the history and tradition of Korean medicine. It does not provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional about health conditions and before using any herb.