On the shelf, gaba tea is almost never called gaba tea. It is called “Sapphire”, “Ruby”, “Emerald”, “Blue”, “Orange”, “Alishan”, “Honey”, “Grape”. A buyer sees a dozen different names and reasonably concludes that these are a dozen different varieties. This is not so: the names describe one technology in different executions, and learning to read them is easier than it seems.
The technology itself — anaerobic leaf resting, which raises the content of gamma-aminobutyric acid — is covered separately in the article Gaba tea. Here the subject is different: what the word before 佳叶 on the label means.
佳叶 and 佳叶龙茶 — a category name, not a variety name
The Chinese name of the category is 佳叶龙茶 (jiāyè lóng chá), abbreviated as 佳叶 (jiāyè). The Latin “GABA” is rare in Chinese product lines and is usually added on the side for export: 黄玉佳叶 Topaz gaba, 蓝晶佳叶 aquamarine gaba. A second category name also occurs — 白金龙茶 (báijīn lóng chá); it is the same thing, not a different product.
Hence the first rule of reading: 佳叶 in a name is not a variety and not a place, but a mark of the technology. Everything else in the line is a qualifier, and it falls into four groups plus a fifth, hidden one: the base.
A caveat right away, otherwise the article will seem to contradict itself later. The stone encodes not only the degree of fermentation and roast, but also the base class: in the emerald line the base is green, in the opal line it is red. That is, a stone is a “base plus grade” pairing adopted by one producer, not a scale on one axis.
Four axes that make up a name
Axis one: stone
| 汉字 | English name | Russian name on the shelf |
|---|---|---|
| 蓝宝 | Sapphire | Sapphire |
| 翡翠 | Emerald | Emerald |
| 猫眼 | Opal, literally “cat’s eye” | Opal |
| 黄玉 | Topaz | Topaz |
| 红玉 | Ruby | Ruby |
| 琥珀 | Amber | Amber |
| 钻石 | Diamond | Diamond |
| 黑钻 | Black Diamond | Black diamond |
| 蓝晶 | Aquamarine | Aquamarine |
| 紫英 | Amethyst | Amethyst |
| 玛瑙 | Agate | Agate |
| 碧玉 · 白玉 · 金钻 | — | Jade, white jade, gold diamond |
The stone is a grade, not a variety. According to one Taiwanese exporter’s specification, which we have in hand, behind the stones stand a base and two parameters: the degree of leaf fermentation (from 10 to 100 %) and the degree of roast. There, Emerald is a green base with 10 % fermentation, Opal is a red one with one hundred, Sapphire is an oolong in the middle of the scale with a medium roast. We have not found an industry standard that would fix “sapphire = 55 %”: this is the producer’s internal scale, and at another factory the same stone may mean something else.
Nine stones from the table are in this specification. 紫英 (Amethyst), 玛瑙 (Agate), and two more flavored positions — 奶香 (milk) and 玫瑰 (rose) — appear in the same supplier’s price list but not in the specification. And 碧玉, 白玉, and 金钻 appear in neither of those places: they are only in our own price source, and we do not know what stands behind them.
Axis two: color
Parallel to the stones runs a coarser color scale: 红色 (Red), 橙色 and 新橙色 (Orange), 黄色 (Yellow), 绿色 (Green), 深蓝 (Deep Blue), 黑色 (Black), 金色 (Gold). We do not know what stands behind it: not a single color position appears in the specification available to us — there are only the nine stones. The series “green → yellow → orange → red → black” suggests the same axis of fermentation and roast, but this is a guess from the name, not a document read. And when 黑钻 (black diamond) and 黑色佳叶 (black gaba) occur in the same price list — they are two different lines; whether they are synonyms cannot be determined from the name.
Axis three: place and cultivar
Here everything is as in ordinary tea, and this is the only axis that speaks about the raw material honestly:
- 阿里山 (Ālǐshān, Alishan) — the most frequent gaba name on the Russian-language shelf. In a research sample of one hundred sellers in the CIS (2026), the characters 阿里山佳叶 were found at twenty-four of them; if Russian spellings such as “gaba alishan” are counted — at thirty. Some form of gaba is present at fifty-seven sellers out of one hundred, so the name Alishan covers roughly half of this market.
- 梨山 (Líshān, Lishan) — true high mountain, about two thousand meters. 鹿谷 (Lùgǔ, Lugu) — a district of Nantou, the birthplace of Dong Ding; it is not high mountain, and in the same specification the Nantou positions stand at 600–700 meters.
- 金萱 (Jīnxuān) — a cultivar, not a place; the original “milk oolong” by origin.
- 贵妃 (guìfēi) — a Taiwanese style with leafhopper bite.
- 福建佳叶 — a claim of mainland, Fujian gaba. Apart from the name itself in the line of our price list, we have no confirmation: neither weight nor price is given there. But assuming every gaba is Taiwanese by default is also wrong.
- 台湾乌龙佳叶 — simply “Taiwanese oolong processed by gaba technology”, without a mountain specified.
A mountain name on a gaba label deserves the same caution as on any other label: anaerobic resting technology can smooth out terroir differences more than ordinary processing can, and verifying origin by taste is even harder here.
Axis four: added flavor
A separate group is gaba with a pronounced extraneous flavor profile: 蜂蜜 and 蜜韵 (honey), 葡萄香 (grape), 果酸 (fruity-sour), as well as a numbered series of three positions — YN一号佳叶泡芙 (profiterole), YN二号佳叶酸梅 (sour plum), YN三号佳叶北海. We do not know what the prefix YN means: by its spelling it resembles 云南, but this is a guess.
An important boundary runs here. Anaerobic resting itself gives a sourish, “fermented-fruity” tone — that is its own signature, not an additive. But a name like “profiterole” or “grape” cannot be explained by that signature. A trade name alone is not enough to tell whether it is a natural shade of the technology, an infusion on a flower, or a flavoring: the composition has to be asked from the supplier for each position separately.
Base: gaba is not only oolong
The common notion is “gaba is an oolong”. It is statistically true and essentially false: the technology is applicable to any base, and the market confirms this.
- Oolong — the overwhelming majority of positions.
- Green — 翡翠, the emerald line with fermentation around 10 %.
- Red — 猫眼: fermentation 100 % on the specification’s scale. “Fully oxidized” would be inaccurate here: the fermentation type across the entire line is declared as 厌氧, oxygen-free, and one hundred percent refers to its scale, not to oxidation.
- Puer — exists as a product position. A Taiwanese exporter lists in its pressed section 普洱佳叶龙茶 and separately a sheng variant 普洱佳叶龙生茶; in our price source 金钻佳叶 is the only one of thirty-five lines standing outside the 乌龙茶 section, and it stands in 普洱茶. A price list line proves where the supplier placed the position, not what raw material it is made from; the English name he gave it himself is “GABA Puer Oolong”, that is, in one name both puer and oolong.
How much GABA is in gaba tea
The only numbers we have from a producer are 157–235 mg per 100 g across nine gaba positions in one specification. The order from top to bottom: sapphire 235, emerald 221, black diamond 203, aquamarine 196, amber 182, ruby 178, diamond 175, opal 164, topaz 157. The tenth line of the same chart is Earl Grey, and its GABA column reads “none”: it was included as a neighboring product, not as part of the line.
How to read this figure. First, it is a producer’s claim, not an independent test protocol — and the producer himself stresses this: a note to the specification says the data are given for orientation, since this is a natural agricultural product. Second, the range is taken from one price list and does not describe the whole market. Third — and this is the main point — the GABA content in dry leaf is not equal to what reaches the cup: the extraction share depends on brewing and is not stated anywhere in these specifications. We give the range as an order-of-magnitude reference, not as a promise.
In this article we examine names, not effects: nothing is said here about what GABA from tea does to a person, and nothing will be. Gaba tea is sold with promises of relaxation and better sleep; the evidence base for those promises is a separate question, and a trade specification does not answer it.
Where the leaf grows
One more detail worth knowing. In the same specification, Vietnam appears against three positions, and it appears differently. For 黑钻 (Black diamond) and 蓝晶 (Aquamarine), the origin-of-leaf column simply reads “Vietnam”. For 黄玉 (Topaz) it reads “Taiwan / Vietnam”, meaning the origin is mixed, and it cannot be called unambiguously Vietnamese.
The producer’s own footnote does not name the country at all: “part of the listed teas are grown outside Taiwan” — and then about how Taiwanese agronomy and craft are fully applied, and the work is conducted by Taiwanese masters. Vietnam is readable only from the table column. The neighboring column “Producing By” gives a Taiwanese address for all ten lines, including both Vietnamese positions — but what exactly it means, the processing location or the company address, the document does not explain, and we will not build on its behalf.
On the Russian-language shelf, all this usually does not reach the buyer: “Gaba Black Diamond, Taiwan” looks entirely like a Taiwanese tea.
We do not remove such positions from the database: the owner’s decision of 18 September 2026 is that this is Chinese tea. The rationale is that gaba is defined by processing, not by the bed: anaerobic resting, the degree of fermentation and roast — all of this is done at a Taiwanese factory by Taiwanese technology, and it is that which defines the product. But the buyer should know where the leaf grew, and where the producer stated it, we state it too.
How to read a label in three steps
- Find 佳叶 or 佳叶龙茶 — this says “anaerobic resting technology”, and nothing more.
- Separate the stone or color from the place. “Ruby” is about roast and fermentation. “Alishan” is about the mountain. If the name contains both (台湾红玉佳叶龙茶), then both axes are indicated.
- Check the fourth axis. Honey, grape, plum, profiterole in the name mean the composition must be asked about: technological sourness and added flavoring are indistinguishable from the label.
What remains unclear
This article describes a system of names, not certifies specific products. Three things remain open and require a supplier’s answer, not reasoning.
- The “stone → fermentation and roast” correspondence is confirmed by one specification. Whether it matches at other factories is unknown.
- The composition of flavored lines (果酸, 葡萄香, 泡芙, 酸梅, 北海) is not disclosed.
- Leaf origin is stated only where the producer himself chose to state it. For the remaining positions, “Taiwan” on the label is a seller’s assertion.