Choy Sum (Chinese Green Cabbage)
Brassica rapa var. parachinensisA Chinese cabbage variety known for its thin green stalks and small yellow flower buds. One of the most common greens in Cantonese cuisine; the stalk, leaves, and flowers are all eaten together.
What Is Choy Sum?
Choy sum is a Chinese cabbage variety known for its slender, tender green stalks and small yellow flower buds (Brassica rapa var. parachinensis). It is one of the staple greens in Cantonese cuisine.
It is closely related to other Chinese greens such as pak choi and gai lan, but choy sum is distinctive because the small yellow flowers at the ends of its stalks are also edible. Its flavor is mildly sweet with the subtle sharpness characteristic of the mustard family.
Choy Sum Nutrition Facts
Raw choy sum provides approximately 13 kcal of energy per 100 g; it is rich in vitamin A and vitamin C. Values are approximate.
How Should Choy Sum Be Eaten?
Choy sum can be part of a balanced diet as a low-calorie food and a source of vitamins; it is usually cooked briefly.
This is general information. Choy sum is a food and is not a substitute for medical treatment.
How to Choose Choy Sum
Good choy sum has crisp, fresh stalks, bright green leaves, and, if present, unopened flower buds. Avoid yellowed leaves or wilted stalks.
- Stalks should look crisp and fresh.
- Leaves should be bright green.
- Flower buds, if present, should still be closed.
How to Store Choy Sum
Choy sum can be stored in the refrigerator wrapped in damp paper for 3–4 days; because it wilts quickly, it is recommended to eat it as fresh as possible.
How to Use Choy Sum in the Kitchen
Choy sum is used most often quickly sautéed over high heat with garlic, with oyster sauce, or in soups; brief cooking preserves its crispness and color.
What Is the Difference Between Choy Sum and Pak Choi?
Pak choi has thick, fleshy white stalks and spoon-shaped leaves, and its flower buds are generally not eaten; choy sum has slender green stalks, is more tender, and is harvested with its flowers. Both belong to the broad Brassica family.
Frequently Asked Questions
How is choy sum cooked?
The most common method is to quickly sauté it with garlic over high heat for 1–2 minutes, or briefly boil it and serve it with oyster sauce.
Are choy sum flowers bitter?
No. The flower buds have a mildly sweet flavor and can be eaten along with the stalks and leaves.
Is choy sum available in Türkiye?
It is not widely available; it may be found in Asian grocery stores and markets.