If you are making tea. The stem is better. It's a little more resistant to brewing. But now summer. Are morning brewing afternoon drink. Longer time are easy to bad.

Gynostemma tea is produced by gynostemma grass,, so I can't say which one is better. Of course. If you have the conditions to use fresh tea. The taste is better.

Because my family is planted gynostemma. So I know a little bit about it.

Because my family grows gibberellic acid.