Wrap the ribs in plastic wrap, then place ribs in an airtight container or resealable plastic bag. They will keep in the fridge for up to a week. To reheat, remove from the refrigerator and let them sit at room temperature for 30 minutes. Place the ribs on a sheet of foil and baste them leftover barbecue sauce. Tightly seal the foil, then bake at 225 for about 30 minutes.