Why does Ainuoya luxury rose tea need warm water of about 70 degrees when brewing?

The corolla and bud of Ainuosha rose are extracted at low temperature under negative pressure of 35-50 degrees, which fully retains the active components in the rose and keeps the natural nutritional components of the rose unchanged; Natural floral fragrance remains unchanged; The medicinal value remains unchanged; The color of the flowers remains the same. Warm water of about 70 degrees can awaken the activity of dormant flowers. At this time, the natural nutrients and natural aroma in roses are slowly reduced to water through pedicels, which can be drunk for a long time, beauty beauty.