When biscuits are kept in cool air they lost their crispness Then how do they?

Here's how it works:

* Biscuits are designed to be dry: The baking process creates a dry, porous structure that traps air. This air is what gives biscuits their light and crispy texture.

* Cool air contains moisture: Even "cool" air contains some level of humidity.

* Moisture migrates: When biscuits are exposed to this humid air, the moisture in the air starts to migrate into the biscuits, moving from an area of higher concentration (the air) to an area of lower concentration (the biscuits).

* Biscuits soften: As the biscuits absorb moisture, they become less dry and the air pockets within their structure start to collapse. This results in a softer, less crispy texture.

How to keep biscuits crispy:

* Store in airtight containers: This prevents the biscuits from being exposed to the moisture in the air.

* Store with a desiccant: A desiccant (like silica gel packets) absorbs moisture and helps keep the biscuits dry.

* Freeze biscuits: Freezing can help to preserve their crispness.

Let me know if you have any other questions!