The shelf life of biscuits can vary depending on various factors such as the type of biscuit, ingredients used, and storage conditions. In general, biscuits are susceptible to moisture and air, which can cause them to become stale. When biscuits are exposed to air, they gradually lose moisture, becoming dry and less palatable over time.
If biscuits are left out of their packaging and exposed to the air, they can start to go stale within a few days. The exact time frame can vary, but typically, biscuits may begin to lose their freshness and crispness within 2 to 5 days if not stored properly.
To maximize the shelf life and maintain the quality of biscuits, it's recommended to store them in airtight containers or resealable bags after opening the original packaging. This helps minimize exposure to air and moisture, which slows down the staling process. Properly stored, most biscuits can maintain their freshness for about 1 to 2 weeks.
Keep in mind that different types of biscuits, such as soft or filled biscuits, may have shorter shelf lives compared to dry, crispy biscuits. Additionally, biscuits with delicate toppings or fillings may lose their texture or flavor more quickly.
If you want to prolong the freshness of biscuits, you can also consider storing them in a cool and dry place, away from direct sunlight and humidity. This helps to maintain their quality for a longer period.
Remember to check the specific instructions or recommendations provided on the biscuit packaging for the best storage practices and shelf life information, as it can vary among different brands and types of biscuits.