Food & NutritionHow long do opened dog treats stay fresh in an airtight container?
Properly stored, they may last about 8-12 months before becoming stale or contaminated. An air tight container in a dry, dark location is best. Freezing may extend shelf life, especially regarding homemade biscuits.
I would hesitate to use biscuits that are two years old regardless of storage method.
Updated on September 24th, 2025