I tried a number of teas ( black, orange peko, hibiscus, and Good Earth Sweet & Spicy.) First in primary and then in secondary in an attempt to bring some tannins. Never really satisfied with them for tannins.
I did find that I liked hibiscus and Good Earth Sweet & Spicy not for the tannins, but for the flavors they brought. Hibiscus is kind of nice a mellow mouth feel and of course a real interesting dark red color. The Good Earth was similar to adding mulling spices.
In secondary:
- Whole teas like Hibiscus i did 2 oz "leaf" (dried flower petals) in a small mesh bag similar to dry hopping but 10 to 14 days.
- Tea bags like Orange Peko or Good Earth. 12 tea bags with the string and tag removed 14 to 21 days just dropped right in. I did have a couple tea bags come open and made racking really difficult. If I were to do tea bags again I would place them loosely in a small mesh bag.
Here are the ingredients from the Good Earth box. 'black tea, natural flavor, rosehip, lemongrass, cinnamon, chamomile, peppermint, jasmine green tea, anise seed, ginger root, orange peel, orange oil" ( I still drink Good Earth as a hot tea and Hibiscusc as an iced tea.)
I did them in 5 gallon batches of FAJC OG 1.065, FG 1.004 with SO4 yeast added during secondary after racking from primary at about 1.010.
As implied above. I no longer add teas have found that they just are not what I prefer. But that's just my personal preference.