Food Additive/Seasoning
Crystalline powder

Monosodium glutamateShelf Life, Storage, and Spoilage Guide

Sourced from
FDAUSDA FoodSafety.gov

Pantry

Indefinite

Store in a cool, dry place away from direct sunlight and moisture. Keep container tightly sealed to prevent clumping.

Refrigerator

Not Recommended

Not recommended

Refrigeration is not necessary and can introduce moisture, potentially causing clumping and affecting product quality.

Freezer

Not Recommended

Not recommended

Freezing is not necessary and can introduce moisture, potentially causing clumping and affecting product quality.

Signs of Spoilage

  • Clumping due to moisture absorption
  • Discoloration
  • Unusual odor (if exposed to contaminants)

Room Temperature Safety

The 2-hour rule (1 hour above 90°F/32°C) primarily applies to perishable foods. Dry, shelf-stable ingredients like MSG are not subject to this rule for microbial safety when stored properly.

The danger zone (40°F–140°F) primarily applies to perishable foods. Dry, shelf-stable ingredients like MSG are not subject to this rule for microbial safety when stored properly.

Store MSG in a cool, dry place to prevent moisture absorption and clumping. While not a microbial safety concern, exposure to high humidity or temperatures can degrade product quality.

Expert Tips

Safe Handling

1

Keep dry to prevent clumping and maintain quality.

2

Use clean, dry utensils when dispensing to avoid introducing moisture or contaminants.

3

Ensure container is tightly sealed after each use to protect from humidity and foreign odors.

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Comparisons

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Freezer
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