2, petal bath generally choose rose, rose, osmanthus, jasmine, Zhu Lan, Prynne, chrysanthemum, Robinia pseudoacacia, etc. Or use essential oils. However, if the petals we use are just picked, we must clean them, especially for the sake of water quality. Fresh petals cannot be washed directly with tap water, because chlorine gas rich in water will not only damage petals, but also dilute fragrance.