Only situations with a published figure are listed. A blank isn't “forever” — it means no reliable number is published for it.
Storage
Store at: Refrigerate at 40°F (4°C) or below
Refrigerate after opening: Yes — refrigerate at 40°F (4°C) or below
USDA FoodKeeper v128 tip (refrigeration): Never refrigerate wet sprouts.
USDA FoodKeeper v128 tip (refrigeration): Transfer to a plastic bag or use a glass or plastic container.
How to tell if Mung bean (sprouts) has gone bad
A rancid or musty smell
Insects, webbing, or larvae in the package
Clumping or visible moisture
Mould, or a slimy surface on cooked grains and pasta
USDA FoodKeeper v128 publishes no spoilage note for Mung bean (sprouts) specifically, so these are the general signs for grains, beans & pasta — never taste something to test it. When in doubt, throw it out.
Air and warmth are what shorten an opened item's life — the right container buys back the days the packaging gives up once the seal's broken.
How long does Mung bean (sprouts) last in the fridge?
About 4–6 weeks at 40°F (4°C) or below, according to USDA FoodKeeper v128. That window runs from the day you bought it — FoodKeeper publishes no separate after-opening figure for this one.
Does Mung bean (sprouts) need to be refrigerated?
Yes — keep Mung bean (sprouts) at 40°F (4°C) or below. Refrigerate at 40°F (4°C) or below.
How can you tell if Mung bean (sprouts) is bad?
Look for: A rancid or musty smell; Insects, webbing, or larvae in the package; Clumping or visible moisture; Mould, or a slimy surface on cooked grains and pasta. Those are the general signs for grains, beans & pasta — USDA FoodKeeper v128 publishes no spoilage note for Mung bean (sprouts) specifically. Never taste something to test it — when in doubt, throw it out.