Showing posts with label hybrid. Show all posts
Showing posts with label hybrid. Show all posts

Tuesday, August 9, 2016

Shi Li Xiang; a Wuyi Yancha cultivar mystery




During the last visit to the Jip Eu tea shop in Chinatown, where I tried some interesting 40 year old aged Tie Kuan Yin, I also picked up an unusual version of Wuyi Yancha (Fujian oolong), a Shi Li Xiang.  I understand that to translate as ten league fragrance tea, or something such; that unit of length just isn't going to translate properly, and "ten kilometer aroma" does put a more modern spin on it.

This is an unusual type of tea.  I think I've had a Thai version before, or at least a tea sold as this, but it wasn't good.  I'll have to look into what it even is.  I wouldn't have bought the tea except I tried it first and liked it.  It's immediately evident that it's decent tea, nothing like a strange tasting grocery store version, but it's not familiar.

It's fragrant, and aromatic, as the name implies.  A primary taste element is similar to almond, but it's complex enough that listing out tastes isn't so simple.  The effect is that the tastes are clean, and the tea is reasonably balanced, and well made, but there's a lot going on, so it's not exactly subtle.  It's a medium roasted Wuyi Yancha, so the roast effect is something else, not coming across as "char," but starting in that direction.

Mineral undertones are the base; normal for the general category (Wuyi Yancha).  The vendor said that the tea would change a lot over a year, which is the way to settle out that char effect (if there had been one), by a relatively short one to two year aging process.  He said that the fragrance would also diminish, so a year of aging would be a trade-off in characteristics.  They had both versions there, this year's and last year's, so if I'd have more time I would have tried both, but I was in a bit of a rush that day.  I tried this one so that's what I bought.  They're nice to visit with in that shop, by the way, with a deep history related to selling and making tea, so better to plan out an extra hour or two of trying teas and talking about tea if you do stop by there.


In the end it's nice.  It's not a tea one would be likely to drink all the time, but then it's probably not a tea one would find a good version of very often either.  That aromatic component is familiar, from a related aspect in a Bei Dou from this vendor, a "real" Da Hong Pao.  Or so the shop said in selling it; I get it that people tend to be skeptical about claims about some tea types, that one more than most.  This post covers why Da Hong Pao isn't always even intended as a plant type, used as a generic brand name, even though it's the general understanding that it is plant type.


looks like a medium roast oolong



This tea is hard to place related to other Wuyi Yancha types.  For having a lot of earthiness, mineral, fruit and floral apsects, whatever else they tend to have, they don't usually come across as having lots going on.  They typically seem to retain a subtlety, in a limited sense, based on showing a few interesting aspects, with some degree of layering of characteristics, at least the better versions.

This could almost be a flavored tea for the range of flavors it exhibits, and that aromatic quality, but I'm certain it isn't one.  The effect is too light and clean, and integrated.  I think using light brewing, experimenting with the normal range of gongfu brewing approaches, one could really draw out some variation from the tea.  That's actually how I tried it initially, prepared gongfu style, brewed a bit lightly, standard enough, but tweaking that might prove interesting.

Research section; background on cultivar versus variety first


I looked up what this really is, since that name seemed to be a branding name, not a description related to a tea plant type, or something that clearly ties to a regional tea.  It was sold as an ordinary Wuyi Yancha type, so that does include the region (Wuyishan area, Fujian), and that it's a well-roasted oolong, but it wasn't sold in a labeled package, just packed separately from bulk tea.


this particular plant, per the vendor

Before getting into more details, lets do a nice long tangent on tea plant types, starting with this decent Hojo vendor tea reference on tea plant naming.  Such references tend to vary a little in how they use the terms (surely with some correct use well defined), but for the most part this matches what I currently understand.  To sum that up, below the genus and species names for tea (Camellia Sinensis) variety (often written as var.) identifies the main, naturally evolving subtypes (Sinensis and Assamica, and some others), with additional cultivar type as the designation of intentionally bred, specific plant types with different characteristics (eg. Tie Kuan Yin).


The World of Tea site weighs in on all this, backing up the other reference, and clarifying the obvious next question that arises, what if a natural variation occurs that people continue to propagate:


Some confusion arises with the fact that a cultivar is simply a cultivated variety, meaning that someone has recognized variations in a plant and has cultivated it to maintain these variations. The plant is still a variety, but because we’re cultivating it, we call it a cultivar. We know that in the tea world, cultivars are created from one of the main varieties or hybrids between the main varieties of Camellia sinensis used for tea production: sinensis, assamica, and to a lesser extent, parvifolia. This is why we sometimes see a variety and a cultivar listed for tea plants — when a plant exhibits variation within a variety, and is cultivated to maintain this variation, we end up with both a variety and a cultivar.

Simply put, varieties are found naturally in the world, once we propagate them for their variance, they become cultivars.


So there it is; if we determine this plant type is a derivation of another type, be it a hybrid (mix from different genetic inputs, from two varieties) or a change from an existing type then it's new cultivar.  It's unlikely that it's not just a variation of the Sinensis variety, although that is a possibility.

What would it take for this type to be identified as a new variety?  Of course not necessarily new in the sense of just starting to exist, since this tea is coming from old plants (more on that later), but in the sense of recognition?  The first Hojo article sort of addresses that, but only in mentioning a limitation, that the new hybrid plants used in Darjeeling, crosses of Assamica and Sinensis varieties, do not have a clear scientific name designation; there is no identified variety.  Per a recent post on Darjeeling these go by clonal tea type names, like AV2, discussed in that post.  These would still be cultivars, of course, cultivated distinct types of plants, but per my understanding with no variety designation assigned (which of course could be mistaken; I'm still sorting all this out).

It makes you want to check out a table-style reference of tea-plant types, doesn't it?  Or maybe that's just me.  I'll include one I've mentioned before here, back to Taiwan teas as a reference, where they keep such things well defined.  The earlier section of this table is on the numbered cultivar series, familiar to most (eg. #12 is Jin Xuan), and if it's not you should check this reference out, although it's partly unreadable due to lots of talk about genetic marker testing, but fascinating nonetheless:




The A and S variety are familiar, but the F is interesting, right?  This from the footnotes:


Abbreviation S:C. sinensis var. sinensis, A: C. sinensis var. assamica, SA: C. sinensis var. sinensis × var. assamica hybrid, AS: C. sinensis var. assamica × var. assamica hybrid, F: C. formosensis, FY: C. formosensis var. yungkangensis.

Note#: G green tea, P Paochong tea, O oolong tea, B black tea.


Lots more one might get into there (landraces, wild teas!  I'll get back to those ideas), but lets get back to that other tea.


Back to Shi Li Xiang; what is it?

per this, it's just tea, var. Sinensis


The Shi Li Xiang name is relatively Google-proof; odd.  Except Chinese restaurants tend to use the name, which seems irrelevant.  A relatively complete database of teas reference lists a Kun Ming Shi Li Xiang tea that's seems to clearly not be it (the page is interesting though; described as an International Tea Database).  That listing is for a compressed tea that might be a tisane, not what this is, or at least seems to be.  An academic paper mentions this as a tea tree type here, titled "Research on Protection and Utilization of Old 'Shilixiang' Tea Trees in Kunming," but the paper isn't publicly available.  Since that's already interesting I'll cite the description of that work:


Research was done on the cultivation history, present status and protection value of old 'Shilixiang' tea trees in Kunming in order to deepen the recognition of the precious tea species, and to carry out scientific protection and utilization of the resources.


That brings up an interesting part of that other database citation:


Category:  dark, compressed.  Note:  Uncertain classification. Could be a herbal tea.


This tea was unusually aromatic, so much so I just asked the vendor by message how they made it so.  But it seems natural to me, a taste from a tea, just not exactly like any other I've tried before, except overlapping a little with that one Bei Dou.


A mystery solved, sort of


I asked around and a lead from a Tea Chat discussion seemed to crack the mystery.  Per that input the tea is probably the same as Qian Li Xiang, which is 1000 mile fragrance (so it travels 100 times further, but it's the same tea?  probably just a name anyway, and I might mention that I didn't actually verify those translations).  This tea name (type) does come up in Google search, just not as very many results, and standard tea information sites don't seem to come up, in general (not as if I spent a day cross-checking possible listings, Google just wasn't mentioning them).  All the same, any mention takes it as a given that it's just another cultivar type, and probably var. Sinensis, same as other Wuyi Yancha, just a bit rare.  Descriptions aren't a perfect match but a general impression that it's a very aromatic tea are enough; it's likely the same.

One discussion comment suggested the name may relate to a processing style, not a plant type, which would makes sense, naming conventions do tend to shift about.  I'm reminded of Cindy (a tea-maker friend) mentioning the tea plant name of a Dan Cong she was referring to by the aroma name instead, a more common designation for those:  "its name is juduozai ,but its aroma is xin ren (nut) [almond, typically], so we also call it xin ren xiang [almond aroma]."  She also said that "danzhu" means picking from one tree, and processing in one machine, for harvest and production lots all taken from a single tea tree (which is completely off the subject, but I just saw that looking up that Dan Cong cultivar name discussion).

Here's a vendor description under Qian Li Xiang that seems typical, which says almost nothing about the tea except that it's aromatic (although at first read it seems to say a lot; funny how that goes).  Most likely there is another cultivar name out there for the tea, so something like the World of Tea cultivar database would be no help based on listing plant types only by the actual plant name, and in fact it isn't any help.  The other listing of tea plant types I'd already cited also didn't mention it.

So it was an interesting find, not quite as interesting if it had been some really novel wild tea-related plant, but it drinks the same either way, or probably better for actually being tea.

Friday, November 27, 2015

Jin Xuan Taiwanese oolong from May Zest tea, and more about cultivars


One thing I haven't had much luck with is writing a simple review; just saying how a tea struck me and moving on.  I tend to get stuck on research tangents, a tea reminding me of something to look into, like the last post related to cultivar types from Taiwan.  But I'll try to do that for this post; keep it simple.

Seems odd to be reviewing a Jin Xuan oolong (this one provided by May Zest tea; my thanks to them for that) given that I just went on in the last post about how I'm burned out on lightly oxidized oolongs, due to trying too many of them this year, sorting out Thai tea sources.

This was a nice tea though, for what it is, and at least it should be easy to compare it to lots of other examples.  I might add first that this tea type (plant type, and processing type) is relatively consistent, with less range than for some between an ordinary example of the tea and a really good one, and it's more rare to run across a "bad version," although I definitely have before.


looks like a lightly oxidized rolled oolong



Review section:



Nice, creamy, soft, and a bit floral.  "Creamy" is the distinctive characteristic for this tea type, and it's prevalent in this one.  People actually say "milky," and the effect is sort of like that, a feel or even taste like milk.  One hears of artificially flavored versions that bring that out even more through additives but I'm fairly certain such things are rare here (meaning where I live now; South East Asia), maybe because it's already present in the tea, not necessary.  Or maybe just because they run behind in how to doctor up teas.  The taste is very clean and natural, consistent across infusions, with the normal range of variation through them; it seems quite unlikely it was adjusted in any way.


The tea has an unusually prevalent sweet-corn flavor element, along with the typical floral components (which I'm not good at separating out, as I'm mentioned, not up on memorizing those to describe them separately).  In later infusions a stronger mineral undertone comes out and that bright sweetness diminishes a little, and the tea drifts from sweet and floral towards a light wood aspect, but the tea is still consistent, and pleasant.


For people really into Jin Xuan it's a good example of the type.  Better than Thai versions?  Maybe, a little, in general, but sort of the same at the same time.  Terroir and processing changes teas but Jin Xuan is pretty consistent as tea types go, or at least decent versions tend to be.


That sweet corn element reminded me of a comment by a tea-friend that better Tie Kuan Yin she'd tried was really floral and sweet, and more mid-range versions tasted more like sweet corn.  I was wondering if maybe that's because they were really Jin Xuan, but of course I'm not trying to imply they were, just mentioning that as a possibility.  Seems more likely than this really being Tie Kuan Yin somehow, but different examples of the same types do vary.


So this is really where tea reviews tend to go; I've described a tea, no rambling on about some background research.  It seems a little sparse.  Why even bother to have read this, since a lot of other teas taste a good bit like this (although again it is a pretty decent version).


Maybe this type isn't so common if you don't live in a country that grows and produces it.  If this were someone's favorite tea it could be very interesting, and if someone loves oolongs and somehow never tried a Jin Xuan from Taiwan--odd as that would seem--they really probably ought to.  This vendor sells other tea types so it would be possible to try something from them that is a bit less conventional, at least typical from my perspective since they mostly grow Jin Xuan in Thailand, and perhaps nice to try this one as well.


Here is the vendor's take on it; nothing I'd disagree with:


Jin Xuan Tea was put forward to market by Taiwan Tea Experiment Station in 1981. The file no.of successfully bred seed is 12 (experimental code no. 2027). Its flavor has a kind of milk fragrance. Through baking, its flavor turns into fragrance of cane sugar or candy. These are all natural fragrances without artificial spice. The leaf size of Ginshan Tea is wider and bigger than that of Oolong Tea, and its edge has the form of zigzag.


The main leaf vein almost forms straight angle against branch leaf veins. The upper height limit for growing Ginshan Tea is 1600 meter above the sea. As its resistance to cold is weaker than that of Oolong Tea, this height is the altitude limit.  As for quality, the output from over 1200 meter is excellent in both flavor and tasting. 


leaves, as they described



Cultivar research section:



Right, this is the part I wasn't going to include.  Two different people gave a lot of great input related to that last post, Thomas Smith, who I'd mentioned, and the Tea Side company owner.  One part of that is a better reference chart of cultivars and tea types from Taiwan, which I'll add here.


The terms get a bit slippery, seemingly used in different ways in different places, but the basic plant types seems to be one thing, derived through prior ordinary plant cross-breeding practices, then later hybrids seem to be referred to as cultivars.  This reference just calls types "germplasms," which works for me.




Perfect!  Jin Xuan is #12 on that list; no controversy over that.  But what about other plant types that aren't those hybrids?  Here you go:





So there it is!  There are a few details to tie together yet, and it doesn't resolve all the cases of multiple names, but this is a lot more to go on than I've seen before.  I wrote a post once about traditional Thai flavored tea, and semi-wild versions of tea plants.  There has been plenty of debate over that in different places, but since tea has been cultivated for about six millenia the "wild" plants are simply not well tended now, not exactly wild in the sense of not previously tended by people, per a conventional take.  The overlap with research in that blog post isn't clear but there are lots of types those might relate to listed here.  It could relate to those listed as "Shan" tea types, but that would just be a guess.


On to those loose ends then; more about the rest that appears in this table.  This is a reminder about the name of that agency changing, from the last post:


Before 2003 it was called TTES (Taiwan Tea Research Station). 
Since 2003 it's TRES (Tea Research and Extension Station).


On those species / varieties mentioned, the abbreviations in that column:


S:     C. sinensis  var. sinensis, 
A:    C. sinensis var. assamica
SA:  C. sinensis var. sinensis × var. assamica hybrid
AS:  C. sinensis var. assamica × var. assamica hybrid 

F:     C. formosensis
FY:  C. formosensis var. yungkangensis


Wow, right.  That last part is about a different species of the camellia genus--if I'm using those terms right--so not really a tea plant, but related to it.


Oddly enough I just read the same general idea in a Steep Stories blog post on the exact same day, yesterday.  In that case it was about  Lao Shu Dian Hong, a species Camellia taliensis plant used to make something similar to black tea.  So I guess that would be another version of a related-plant oxidized-leaf "tisane."


One column had initials for countries too:  TW - Taiwan, IN - India, CN - China, TH - Thailand, MM - Myanmar.


And then some recommended types:  G green tea, P Paochong tea, O oolong tea, B black tea.


Fascinating stuff, at least to me.  I'll have to get back to what the "Paochong" reference relates to later.