Korean Plum (Maesil)

Health Benefits

Helps relieve fatigue. Citric acid, the main organic acid in maesil, is said to aid the breakdown of lactic acid, the compound associated with fatigue. This is a general explanation based on the metabolism of organic acids rather than on human clinical evidence.

Supports digestion. The organic acids that give maesil its sour taste are thought to stimulate digestive secretions, and the fruit has traditionally been used as a digestive aid. This is a traditional, experience-based claim.

Antimicrobial action. Citric acid is noted for inhibiting microbial growth. However, some claimed benefits, such as detoxification or liver protection, rest on popular health information and cannot be stated as well-established facts.

Use with caution. Because maesil syrup contains a lot of sugar, consuming large amounts in hopes of health benefits is not advisable. No more than two servings a day is recommended.

Nutrition

• Citric acid (The most abundant organic acid) — Provides the sour taste, helps break down fatigue-related compounds, and is noted for inhibiting microbial growth.
• Malic, succinic, and tartaric acids (Present in varying amounts) — Together with citric acid, they create maesil's distinctive tartness.
• Catechinic acid and picric acid (Present) — Part of maesil's organic acid content.
• Potassium (Present) — A mineral found in maesil.
• Carotene (Present) — A vitamin-precursor compound found in maesil.

Pairings

○ Maesil-cheong (plum syrup) — Made by layering green plums with sugar and letting them steep. Added to meat dishes, it helps tenderize and aids digestion; used in a marinade for fish, it cuts the fishy smell. It's a versatile way to add sweetness and savory depth to seasoned vegetable dishes, dressings, and chogochujang (a sweet-and-sour red chili sauce).

○ Maesil-jangajji (pickled plums) — Salt-cured into a tangy, salty side dish eaten with rice. They refresh the palate alongside oily foods and pair well with mild dishes such as rice porridge.

○ Maesil-ju (plum liquor) — Because it needs soft flesh and a strong aroma, fully ripened yellow plums (hwangmae) work better than green plums.

○ Taming the smell of meat — A spoonful of plum syrup in a marinade reduces off-odors in meat and fish while adding a touch of sweetness.

Varieties

• Nanko — A vigorous tree with a spreading, open habit. It is susceptible to black spot and bacterial shot-hole disease, and is widely used for fermenting and pickling. Often called hongmaesil (red plum).
• Baekgaga — Blooms relatively early, so it is often used as a pollinator for other varieties.
• Okyeong — A spreading variety with thick, long branches and good formation of short fruiting spurs. It has few imperfect flowers, so it shows little biennial bearing.
• Cheonmae — Blooms early and produces abundant pollen, giving it high self-fertility. The fruit weighs about 20 g and is harvested in mid-to-late June; well suited to fermenting.
• Cheongchuk — A pure green-plum (cheongmae) variety.