The Beginning: Japan, 1980s
In the mid-1980s, Japan was actively exploring ways to make traditional green tea more functional. At the National Tea Institute (MAFF), Professor Tojiro Tsushida and his colleagues experimented with fermentation conditions — placing fresh tea leaves in an oxygen-free environment filled with nitrogen. The result was unexpected: GABA levels in the leaves increased dozens of times. Thus, the first GABA tea in history was born: Gabaron.
Taiwan: From Laboratory to Art
Taiwanese tea masters adopted the technology and applied it to their beloved oolongs. The result exceeded expectations:
- Oolongs developed greater depth of flavour
- A soft, velvety texture reduced acidity and astringency
- The teas became popular not only for health benefits but as gastronomic masterpieces
This is how GABA tea moved from Japanese laboratory benches into the tea pavilions of Alishan and Shan Lin Xi.
What Science Says Today
- Stress reduction: Human studies show GABA oolong helps reduce stress and improves heart rate variability under pressure
- Clinical evidence: Research highlights GABA's potential, with consumers widely reporting subjective calm and balanced mood
- Chemistry: Metabolomics research describes how glutamic acid transforms into GABA during anaerobic fermentation
Conclusion
GABA tea was born from a Japanese laboratory experiment but achieved its true brilliance in Taiwan, where it became part of tea culture. Today it stands at the crossroads of science and tradition — research on stress and blood pressure on one side, the multilayered flavours that keep connoisseurs returning on the other.
Discover GABA Tea at Gaba Tea House
We source our GABA teas directly from the mountains of Alishan and Shan Lin Xi — the very gardens where this tradition took root.