How Long Can a Sealed Cookie Box Last?

The shelf life of a sealed cookie box depends on the packaging material and storage conditions, typically ranging from 1 to 3 months.

Shelf Life for Different Packaging Materials:

Tin-plated tin cans: 3 months (best sealing, prevents moisture and oxidation).

Plastic bags: 2 months (must choose food-grade, thickened moisture-proof material).

Bulk cookies: 1 month (susceptible to environmental humidity and temperature).

Key Factors Affecting Shelf Life:

Humidity control: Relative humidity should be below 60%. Use silica gel desiccant or quicklime packets.

Temperature management: Temperatures below 18℃ can extend shelf life. Refrigeration is recommended for cookies containing butter.

Oxygen isolation: Vacuum sealing or nitrogen-filled packaging can extend shelf life by 3-6 months.

Special Precautions:
Cookies containing nuts need refrigeration to prevent oil spoilage.

Handmade, preservative-free cookies are recommended to be consumed within 2 weeks.