This is the best way to store a punnet of strawberries to ensure they stay fresh for as long as possible. First, check the punnet for any damaged or mouldy berries and remove them. Next, place them in a single layer on a paper towel-lined tray or container. Cover the container with a lid or plastic wrap and store it in the refrigerator.  It's best to store strawberries in the crisper drawer, which has higher humidity and will help prevent them from drying out.  Avoid stacking the strawberries on top of each other, as this can cause them to become crushed and bruised.  Use the strawberries within a few days of purchase, as they can quickly go bad.