M&M's Chocolate CandiesShelf Life, Storage, and Spoilage Guide
Pantry
6-12 months (unopened, for best quality)
Store in a cool, dry place, away from direct sunlight and heat. Keep in original sealed packaging or an airtight container.
Refrigerator
Safe indefinitely (quality may be affected)
Not generally recommended for quality due to potential for sugar or fat bloom. If refrigerating in hot climates, store in an airtight container to prevent moisture absorption. Allow to come to room temperature before consuming for best quality.
Freezer
Safe indefinitely (quality may be affected)
Store in an airtight, freezer-safe container or heavy-duty freezer bag to prevent freezer burn and absorption of odors. Quality may be affected over time.
Signs of Spoilage
- Melting or stickiness (due to heat, not microbial spoilage)
- White or grayish film (sugar or fat bloom, a quality issue, not spoilage)
- Unusual off-odor (rare, but could indicate rancidity of fats if very old or poorly stored)
- Mold (extremely rare, but possible if exposed to significant moisture)
Room Temperature Safety
Not applicable for bacterial growth. Temperatures above 75°F (24°C) can cause melting and quality degradation.
Store M&M's in a cool, dry place, ideally below 75°F (24°C), away from direct sunlight or heat sources to maintain quality and prevent melting.
Safe Handling
Keep packaging sealed until ready to consume to maintain freshness.
Avoid extreme temperature fluctuations to prevent sugar or fat bloom, which affects appearance but not safety.
Wash hands before handling food.