Natural form

Fresh mung bean sprouts: pale ivory stems with small yellow-green seed tips.

Shows the unmistakable form of raw bean sprouts so readers immediately recognize them at a market or in packaging.

Produce

Bean Sprout

Crunchy mung-bean sprouts used raw or quickly stir-fried in Asian dishes.

Bean sprouts (taugeh) are the tender, crisp shoots of germinated mung beans, a staple texture element in East and Southeast Asian cooking. They are tossed raw into salads and noodle bowls, piled onto pho and pad thai, or flash stir-fried for crunch. Best used very fresh, as they wilt and spoil quickly.

Mung bean sprouts are germinated seeds of Vigna radiata, harvested just 4–7 days after the mung bean begins to grow. The sprout consists of a white-to-cream stem (the hypocotyl), typically 2–5 cm long, topped with a tiny pale-green cotyledon leaf. Mung bean sprouts are one of the most widely used vegetables across East and Southeast Asia, appearing in Chinese lo mein, Korean namul, Vietnamese pho, Thai salads, and Japanese noodle dishes. Their virtue is their watery, refreshing crunch—a quality that disappears within seconds of overcooking, turning the sprouts soft, gray, and unappetizing. Understanding this texture is the key to using them well: they are always added at the last moment, whether to a hot wok, a simmering bowl of soup, or a fresh spring roll.

The flavor is delicate and mildly bean-like with a subtle sweetness in the cotyledon, making them a neutral vehicle that absorbs sauces and seasonings while providing contrast in texture. Freshness is critical—sprouts should be used within 2–4 days of purchase and show no signs of discoloration, sliminess, or sour odor, which indicate bacterial growth. While not a nutritional powerhouse, their high water content and crunch make them a valuable textural element in dishes that might otherwise feel heavy. In Korean cuisine, soybean sprouts (kongnamul) are actually more commonly served as banchan than mung bean sprouts, but mung bean sprouts dominate in stir-fries, spring rolls, and Southeast Asian preparations.

Growing bean sprouts at home is straightforward: 100 grams of dried mung beans yields approximately 1 kilogram of fresh sprouts in 4–7 days. Keep them in darkness for pale white stems (standard for most uses) or expose to light briefly in the final hours if green tips are desired. Home sprouting with proper hygiene eliminates the uncertainty of store-bought product and guarantees freshness at its peak.

Measured in: g
Storage: Fridge

Types & varieties

Mung Bean Sprout

The standard kitchen variety; white stems 2–5 cm with tiny leaves; the item described here

Soybean Sprout (Kongnamul)

From sprouted soybeans (Glycine max); larger (5–8 cm), thicker, more pronounced yellow color; nuttier, heartier flavor; used in Korean cuisine

Adzuki Bean Sprout

From sprouted adzuki beans; smaller, denser texture; less common commercially but used in Chinese and Japanese cooking

Selecting and Storing Bean Sprouts

Freshness makes or breaks this ingredient. Choose tight, firm root ends—the white tail should be compact and springy, not loose or spread out. Avoid any sprouts showing brown or gray discoloration, which signals age or improper storage. The ideal sprout is white to cream with a tiny pale-green tip; excessive yellowing suggests age but is not a safety issue.

Storage is critical: excess moisture is the enemy. After purchasing, do not seal sprouts in a tight plastic bag. Instead, spread them on a paper towel, roll loosely, and place in a breathable bag (or a perforated plastic bag) in the refrigerator's crisper drawer. Use within 2–4 days for optimal texture. If you smell anything sour or detect a slimy coating, discard immediately—these are signs of bacterial growth, not just staleness.

Look for compact, firm root ends; loose or spread-out roots indicate older product
Refrigerate immediately after purchase; do not leave at room temperature
Wrap loosely in paper towels inside a breathable or perforated bag
Use within 2–4 days for best crunch and safety

Korean Bean Sprout Preparations

In Korean cooking, bean sprouts appear most commonly as namul (seasoned vegetable side dishes) and as a banchan component. The technique is precise: blanch sprouts in boiling salted water for exactly 30 seconds, then immediately plunge into ice water to stop the cooking. Drain thoroughly—squeeze out excess moisture by hand for namul, because water dilutes the seasoning sauce. The classic namul seasoning combines sesame oil, sesame seeds, soy sauce, and minced garlic. The sprouts should be coated but not swimming in dressing. For a simpler banchan, toss blanched sprouts with sesame oil, salt, and sliced green onion.

Blanch exactly 30 seconds; timing is non-negotiable
Ice bath immediately after blanching
Squeeze out moisture by hand before seasoning namul
Season generously with sesame oil and soy sauce

Common uses

Quick stir-fries (wok-cooked 30–60 seconds over high heat) in Chinese lo mein, pad thai, pad see ew, and fried riceRaw in Vietnamese fresh spring rolls (gỏi cuốn), Korean bibimbap, and salad bowlsKorean side dishes: blanched and seasoned with sesame oil, garlic, and soy sauce as namul or banchanThai som tam (green papaya salad) and laab saladsPho and other Vietnamese soups; added in the final moments of cooking or as a garnishJapanese and Korean noodle soupsPickled briefly in rice vinegar with a pinch of sugar and chili for a condimentStuffed into banh mi sandwiches for crunch

Tips & pitfalls

Add sprouts in the final 30–60 seconds of any stir-fry; overcooking turns them mushy and gray within minutes
Always rinse thoroughly under cold running water and drain well before use
Store dry: excess moisture accelerates spoilage and promotes bacterial growth
Choose tight, firm root ends (the white tail); loose or spread-out roots indicate older, less fresh product
If growing at home, keep sprouts in darkness for longer white stems; expose to light only in the last few hours if you want green tips
Do not use sprouts that smell sour, have a slimy coating, or show any discoloration—this indicates bacterial growth
For safe raw use in salads or spring rolls, blanch in boiling water for 30 seconds, then plunge into ice water to preserve crunch
When stir-frying, work in small batches over the hottest part of the wok to maintain crisp texture; crowding causes steaming and ruins the crunch

Nutrition

43kcal

Energy

180 kJ · per 100 g

Where the calories come from

Protein 26%Carbs 69%Fat 5%

Protein

3.4g

7% DV

Carbs

3% DV

Fat

0.3g

0% DV

Fiber

3.8g

14% DV

Sugars

2.2g

of which

Sodium

25mg

1% DV

Notable micronutrients

Vitamin K148% DV

Vitamin C94% DV

Folate15% DV

Vitamin B613% DV

Thiamin (B1)12% DV

Iron8% DV

Source · USDA FoodData Central · approx. Brussels sprouts, raw

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Good to know

Source: Germinated mung bean (Vigna radiata) seeds, harvested 4–7 days after germination
Origin: East and Southeast Asia; cultivated in China for over 5,000 years, central to Chinese, Korean, Japanese, Thai, and Vietnamese cuisines
Typical Size: 2–5 cm long, 2–4 mm wide; white-to-cream lower stem with tiny pale-green cotyledon leaves at tip
Flavor: Delicate, mildly bean-like, subtly sweet; watery crunch with slight nuttiness in the cotyledon leaf
Calories: 31 kcal per 100 g raw
Key Nutrients: Vitamin C (13 mg/100 g), Vitamin K, folate, manganese; modest protein (3 g/100 g)
Storage: Refrigerate immediately; wrap loosely in paper towels inside a breathable bag (or perforated plastic); use within 2–4 days
Shelf Life: 2–4 days fresh; do not freeze (cell walls collapse, texture becomes rubbery)
Yield: Approximately 1 kg from 100 g of dried mung beans
pH: 6.1–6.5 (slightly acidic); sour odor or sliminess indicates spoilage
Difficulty: Very easy to grow at home; requires darkness for long white stems, then light briefly for green cotyledons

Substitutes

Soybean Sprouts (Kongnamul) — Denser texture and nuttier flavor; blanch and season the same way; not a direct texture match but functionally close
Pea Shoots (Pea Tendrils) — Different plant but similar delicate crunch; best used raw or wilted briefly; more expensive
Radish Sprouts — Sharper, peppery flavor; good for raw applications where a spicier crunch is acceptable
Thinly Shaved Cabbage — Provides crunch in stir-fries and spring rolls but lacks the bean character
Cellophane Noodles (Mung Bean Threads) — Different texture entirely but shares the same mung bean origin; not a true substitute