Does it have caffeine in it?

pu1. No, I don't

2017-12-18

OK

pu2. It's not that I don't have it at all. It has a small amount

2017-12-18

OK

pu3. If you search for it, you have a lot of knowledge that there is or does not have caffeine in round tea, but according to the news below, traditional tea such as lotus leaf tea, round tea, citron tea, and omija tea does not have caffeine. The reporters must have investigated and written it down, so this should be accurate.
http://www.sisapress.com/journal/article/129758

2017-12-18

OK