1, from the rose planting base of the rose flowers, must be processed immediately to avoid the volatilization of effective aromatic substances, reduce the amount of essential oil extraction;

2, the method used is to use salt stirring to seal the flowers to emit fragrance, after the sealing of the flowers can be distilled processing;

3, the flowers are put into the distillation tanks, steam heating and pressurized distillation, distillation After the steam cooling condensation to form distillate, into the oil-water separator;

4, oil-water separator at low temperatures in the essential oil on the distillate under the separation of essential oil extraction into the essential oil storage containers;

5, the following distillate cycle into the distillation tank to continue to heat and evaporation;

6, and so on and so forth until the extraction of essential oils is complete. The remaining liquid is pure dew.

Method two:

Steam extraction. Fresh rose petals are collected and distilled to extract the active ingredients. By using pressure extraction the original ingredients are maintained.

Method 3:

Moisture vapor distillation puts the rose into vacuum sealed boiling water, then heats it until water vapor forms, then cools the vapor until it becomes liquid. The speed is slow, the active ingredients in the pure dew is difficult to have been maintained.