Yes, you can reheat cooked bean sprouts. Keep them in the fridge, eat them within 3 to 4 days, and reheat them once until they’re steaming hot all the way through (165°F / 74°C). They’ll be softer than when fresh, so a quick stir-fry works better than the microwave.
Why sprouts need a little more care
Sprouts grow from seeds in warm, damp conditions, and bacteria like Salmonella, E. coli and Listeria thrive in the same conditions. The FDA notes that even a few bacteria on the seed can grow to high levels during sprouting. Washing helps but doesn’t remove the risk.
That’s why the FDA advises cooking sprouts thoroughly. It also advises that children, older adults, pregnant women and people with weakened immune systems shouldn’t eat raw sprouts at all. Reheating cooked sprouts until steaming hot keeps them in the “cooked” category.
How to store cooked bean sprouts
- Refrigerate them within 2 hours of cooking, or within 1 hour on a hot day.
- Use a shallow, covered container so they cool quickly.
- Eat them within 3 to 4 days. If they smell sour or feel slimy, throw them out.
How to reheat them
- Stir-fry (best): heat a little oil in a hot pan or wok and toss the sprouts for 1 to 2 minutes, until they’re steaming and heated through. The high heat keeps some crunch.
- Microwave: cover them and heat in short 30-second bursts, stirring in between, until steaming. They’ll go softer.
- In soup or noodles: add them to the pot and bring it back to a full simmer.
Reheat only the portion you’ll eat, and don’t reheat the same sprouts twice.
What about raw sprouts left over from a salad?
Don’t keep them as “leftovers” to eat raw. Cook them thoroughly before eating, especially if anyone at the table is in a higher-risk group. Raw sprouts are also regularly linked to food poisoning outbreaks, so check the FDA’s outbreak list if you’re unsure about a brand.
Quick answers
Can I freeze bean sprouts?
You can, but they turn limp when thawed. They’re only good for cooked dishes like soups and stir-fries.
Why do reheated sprouts get watery?
Sprouts are mostly water. High heat for a short time drives it off, while slow microwaving leaves them soggy.
Sources: U.S. FDA, Selecting and Serving Produce Safely; USDA Food Safety and Inspection Service, Leftovers and Food Safety.