Hydro is enjoyable average cocktail at 1.5 standard drinks. Built with 30ml vodka and 15ml bitters orange batch with 15ml orange juice as well as 110ml soda water including 130ml ice and best with morning tea snacks. Just place ice into glass then add nip of vodka and pour in orange bitter. Add orange juice and lightly stir in soda water and served in a goblet glass cold.