Our Golden Chrysanthemum has no bleaching agent, no sulphur added, no preservative. Chrysanthemum has been used for hundreds of years in Chinese medicine to help in reducing inflammation(a good source of Vitamins A and C), lower blood pressure and cholesterol. Tips: Boil or soak 8~10 flowers in hot water for five minutes to reap the benefits in Chrysanthemum tea. Water temperature: 90°C~95°C. You can even blend with Goji berry to enhance the nutritional value of your tea!