以下是引用Devils_Dust在2008-2-22 23:30:00的发言：

萃取方式不同决定了精油的成份啊

LZ可以考古下关于CO2这个萃取方式，就应该知道你需要哪种油啦

I think LZ's question can not simply answered by the difference in these two extraction methods. CO2 extracts sound more atractive and modern, but the effects are not well documented. For some oils, CO2 extraction is better (more complete aroma and more effective components), but for others, traditional oils are better.

please  

[em24]

if I am wrong!