Hi Olelenku, I don't know if any one answered your question? From my experience I have seen some carry Ketepa Tea........and successfully passed through customs. The worst that can happen if they randomly stopped your Luggage. The FDA guys(Food and Drug Administration) would simply ask you to either pay duty for them if too many packs or surrender them if you can't afford...Secondly worst scenario is to quarantine the Ketepa Tea, Thus if they suspect any health risk to the general population( Americans) or the environment but tea does not carry killer diseases...lol from my small research I believe if its not processed then Tea is not allowed into the country....
So I would say carry them as well as Royco etc..some People are caught with delicious things like dry frog legs, raw turtle heads, BBQ rats etc..for those into fear factor food stuff like the Chinese
...so yours is a walk in the park. Hope this helps!!!
For more info check this site for what to carry or not..
https://help.cbp.gov/app/answers/de...vMTM5MDEzMTI3My9zaWQveEE2alZMS2w=/suggested/1
and this pdf go to Table 3-148 where they talk about tea.
http://www.aphis.usda.gov/import_export/plants/manuals/ports/downloads/miscellaneous.pdf