如把花浸入水中,其变色范围和醇浸出液差不多。易变质,特别是夏天,更不易保存。花的色素在乙醇中更易溶解,又可长期保存,所以用乙醇做溶剂比水更加要好。 If the flower is immersed in water, the color change range is similar to that of the alcohol leaching solution. Perishable, especially in the summer, is less likely to be preserved. Flower pigments are more soluble in ethanol and can be stored longer, so using ethanol as a solvent is better than water.