We decided to do a two-part experiment out of curiosity. Because some vendors have claimed that including tea flowers in pu'er cakes was "traditional" or the "indigenous" way of making tea (oddly enough, tea plants flower in fall, and pu'er is supposedly traditionally made in spring...hrm...), we decided to brew, side by side, the 1999 cake with and without tea flowers, to see how it fared.
Before the meat of the post, I'd like to mention that I have seen only
Another bit of information: according to a 2002 study at the Institute of Biochemistry at National Taiwan University, tea flowers have nearly the same antioxidant levels, but far less caffeine, than actual tea leaves. If you want the benefit of drinking tea but are caffeine sensitive or want to avoid caffeine, these might be for you.
We used competition tasting sets and identical weights of tea, 7 grams of the cake. In the tea flower mix, we used 1.5 grams of tea flowers, about 8 blossoms.
Parameters: 7g leaf, 7g leaf + 1.5g flowers, 120ml tasting sets, boiling remineralized RO water with bamboo charcoal. timing: 5s rinse. 10s, 10s, 15s, 10s, 10s
A couple of things stood out to me. First, the 1999 cake--looking far younger than 8-9 years old--had some aged taste to it. Second, the aroma of the leaves, without flowers, resembled bbq sauce: sweet, spicy, smokey. With the flowers, though, the aroma was floral, orchid, honey, and masked the smoke. Initially, the leaves-only mix tasted flat, and the leaves with flowers tasted rounder, softer, finished longer, and had a thick, syrupy texture.
Without flowers on left, with flowers on right
But which tea we preferred alternated from brew to brew. Some brews, the leaves-only brew offered aged flavor that hit the gullet the whole way down. Other times, the roundness and soft texture of the flowered pu'er softened bitterness and awkward adolescent flavors found in the leaves-only mix. Both, at times, were very astringent and drying, and both sometimes had none. In the fourth infusion, the difference in flavor and aroma was so subtle we couldn't distinguish one from the other. The fifth infusion then reversed this, and they were very distinct: the flowered version stayed on the palate much, much longer.
Without flowers
With flowers
Ask me which I'd prefer to drink, and I don't think I could say. Davin says the tea was more interesting with flowers, but not necessarily more enjoyable. I agree: the age of this tea gives it some strange pubescent flavors, so it was a weird comparison. Even without the flowers, this mini bing needs more time; it's not wonderful to drink, yet. With its interesting mouthfeel and relative power after 9 years of very dry storage, I think it has some promise.
As mentioned, we intend to experiment again. Next time we intend to test if the flowers, which overall lend a very muted flavor and subtle aroma, blend well with shu pu'er.