以下是引用littlepc在1/21/2010 11:07:00 AM的发言：
我真的写信给Judy问了保质日期和保存的事情，Judy说

You can keep the hydrosols for years as long as there is no contamination.  Keep it cool.  Pour only what you will use – don’t pour back into the bottle.  Don’t stick your fingers in it.

You can also freeze it. 

 

There is no expiration date as, again, there is no contamination.

看来我可以把它们先冻起来？

天天敷脸的Jms啊，1/2gallon能用多久呢