Objective: How to make lemongrass tea.

Which of the following solutions is more sound in terms of naive physics reasoning?

OPT:
(1). Boil water in a pot. Add the lemongrass and boil rapidly for 5 minutes. Reduce the heat to low and simmer the tea for an additional 5 minutes. Strain the stalks from the liquid. Stir in the salt until dissolved. Serve warm, or chill in the refrigerator and pour over ice.
(2). Boil water in a pot. Add the lemongrass and boil rapidly for 5 minutes. Reduce the heat to low and simmer the tea for an additional 5 minutes. Strain the stalks from the liquid. Stir in the sugar until dissolved. Serve warm, or chill in the refrigerator and pour over ice.
(2).