Refreshes your mood with a subtle scent and also contains antioxidants... However, do not expect too much. Rosemary water is not difficult to make. pexels In the hot summer, drinking enough water is more important than anything else. However, if you keep drinking plain water, you will easily get tired of it. In this case, just adding a single herb can change the mood of a glass of water. Recently, overseas, ‘rosemary water’ has become a summer health drink.