• If you’re not serving all your meringues at once, store them in an air tight container at room temperature. They’ll be good for 2 weeks.  • Extra whipped cream can be stored covered, in the refrigerator for about 5 days. • For the best tasting (and looking) pavlovas, only cut and use as much fruit as you intend to eat at one sitting. The syrup can be covered and stored in the fridge for about 5 days.