This beverage I made with hot water, let steep, and drank at room temp. VERY tangy (from the lime) but not bitter or unplesent. The addition of a 1/2 tsp of organic honey improved the tartness. Did not feel like it had any different effect than a nice cup of coffee. I look forward to trying other flavors but would probably not purchase this lime flavor again. Some YERBA MATE claims: Yerba Mate has the ?strength of coffee, the health benefits of tea, and the euphoria of chocolate" all in one beverage. Does contain caffeine. This was a sample I received so I have no single serving price point. Website says $5.95 +shipping for 20 large tea bags. Ingredients: Organic Green Yerba Mate, Organic Hibiscus Flowers, Organic Sun-Dried Lime Website says "Naturally High in Vitamin C This amazing, fruity Tropical Lime yerba mate blend is not only refreshing hot or cold, but is an amazing booster to your body's defense system"