Clover does not have a good way to manage expired and damaged inventory. The best solution in my opinion would be to enable ability to toggle sale tracking off for a specific payment type. This would be similar to the way you can create a product that does not impact revenue, (currently only available on a product by product basis.)

This would allow all products rung to a "Expired/Damaged" payment type not to be counted as sales history.

This is important because when assessing sales history to determine what products need to be re-ordered, currently the expired products are showing as sales and skewing actual sale numbers for the products that frequently expire such as most dairy products.