In a saucepan, bring 1 litre (4 cups) of water, the zest and sugar to a boil. Remove from the heat. Add the tea and let steep for 5 minutes. Pass through a fine sieve. Add the remaining water and lime juice. Pour into a pitcher and refrigerate for 4 hours, or more. Serve with lime wedges.
Recipes with the "Healthy Pick" stamp have been evaluated by a registered dietitian member of the Ordre professionnel des diététistes du Québec.