5. Flour
Flour does not need cold to be fresh. All you need to store your flour is a dry container. The container should be airtight. What flour dislikes is moisture. This is the only thing to avoid while trying to store the product. The container you keep your flour in should be tight not only to protect it from moisture, but also from insects. Besides, this is how you can protect it from absorbing smells from outside and other foods if you keep it among other products.