Fungi/Mushrooms
Rehydrated or fresh

Black fungus in waterShelf Life, Storage, and Spoilage Guide

Sourced from
USDA FoodSafety.govFDA

Pantry

Not Recommended

Unsafe

Rehydrated or fresh black fungus is highly perishable and should not be stored at room temperature.

Refrigerator

3-4 days

Store in a sealed container or bag in the coldest part of the refrigerator. Ensure it is well-drained if storing for more than a day.

Freezer

10-12 months (if blanched)

For best quality, blanch black fungus before freezing. Drain well, cool, and then freeze in airtight containers or freezer bags. Do not freeze directly in water as it can affect texture and quality.

Signs of Spoilage

  • Slimy or sticky texture
  • Off-odor or sour smell
  • Discoloration (darker spots or unusual colors)
  • Visible mold growth

Room Temperature Safety

2-hour rule: Do not leave perishable food out at room temperature for more than 2 hours. If the temperature is above 90°F (32°C), do not leave out for more than 1 hour.

40°F–140°F (4°C–60°C)

Promptly refrigerate or freeze black fungus in water. Discard any left in the danger zone for too long.

Expert Tips

Safe Handling

1

Wash black fungus thoroughly under running water before use.

2

Avoid cross-contamination by keeping raw or rehydrated fungus separate from other foods, especially ready-to-eat items.

3

Cook black fungus to appropriate temperatures if used in cooked dishes.

Related Items

Comparisons

Fresh Mushrooms (e.g., Cremini)Black fungus in water is more perishable than fresh, dry mushrooms due to hydration.
Fridge
7-10 days
Freezer
10-12 months (if blanched)
Dried Black Fungus
Pantry
1 year (unopened, dry storage)
Cooked Vegetables
Fridge
3-4 days
Freezer
10-12 months