bean sprouts
Sprouted mung beans (most commonly), crisp and mild; eaten raw or briefly cooked in stir-fries, soups, and salads. Because they're grown in warm, humid conditions, raw sprouts carry a higher risk of bacterial contamination than most produce -- anyone more vulnerable to foodborne illness (very young, elderly, pregnant, or immunocompromised) is generally better off with them cooked through rather than raw.
Buying guidance
Buy the freshest, coldest package available -- look for crisp, pale sprouts with no pooling liquid, browning, or sour smell. Use them within a couple of days of buying; they don't keep long.
Substitutions
- Snow pea shoots -- similar fresh crunch, added at the same late stage of cooking.
- Shredded cabbage or thinly sliced celery -- a milder, less distinctive crunch, but sturdier and keeps longer.
Tips & common mistakes
Bean sprouts release a surprising amount of water once they hit a hot pan, so adding them too early or cooking them too long turns a stir-fry watery and limp -- add them in the last minute or so, just long enough to lose their raw edge while keeping the crunch.
Storage
Submerging bean sprouts in a container of cold water in the refrigerator, changing the water daily, keeps them crisp longer than leaving them in their dry bag -- it's one of the few vegetables where storing it wet actually extends its life rather than causing early spoilage.