* Starting from 50g, the tea will be vacuum-sealed. Each bag contains 50g.
Product Overview
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Material: High-altitude thick tea leaves originally cultivated for Li Shan Oolong.
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Processing Mechanism: Fresh leaves undergo anaerobic fermentation in a sealed, nitrogen-filled environment for several hours. This process converts glutamic acid into γ-aminobutyric acid (GABA), achieving a concentration of >150 mg of GABA per 100 g of dried tea.
Sensory Profile
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Appearance: Tight, neatly curled dark-brown threads with a lustrous, slightly reddish sheen. Releases a distinct natural fragrance upon opening.
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Liquor: Bright, clear amber with a reddish-golden glow.
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Aroma & Flavor: Rich honey-like sweetness layered with ripe stone fruit, longan, and delicate floral notes.
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Mouthfeel: Smooth, full-bodied, naturally sweet with minimal bitterness. Elicits abundant saliva and delivers a clean, lasting huigan (sweet aftertaste).
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Body Feel & Caffeine: Moderate caffeine (approx. 30–50 mg per 200 ml cup). Generates a balanced tea energy (cha qi)—calming yet clear-headed, driven by the synergistic effect of GABA and naturally occurring L-theanine.
Brewing Parameters
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Standard (Gaiwan / Teapot):
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Ratio: 5–6 g per 100–120 ml.
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Temperature: 95–98 °C.
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Timing: 15–20 seconds for the first infusion; add 5–10 seconds for subsequent infusions (yields 8–10 infusions).
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Variables for Softer Profile: Lower water temperature to 90 °C and apply shorter steep times.
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Grandpa-Style (Bowl/Large Cup): 3–4 g in a large vessel, refilled with hot water throughout the day.
Storage Variables
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Base Condition: Keep in original vacuum-sealed bag or airtight container, isolated from light, heat, moisture, and odors.
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Short-Term (< 8 months): Room temperature in a cool, dark environment.
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Long-Term (1–3 years): Refrigerate or freeze in a sealed bag. Crucial Precondition: The bag must return to room temperature prior to opening to prevent condensation on the leaves.
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Post-Opening: Consume within 2–3 months for optimal volatile aroma retention.
Physiological Mechanisms & Boundary Conditions
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Documented Variables: Clinical trials indicate that GABA tea consumption correlates with reduced mental stress markers, improved heart-rate variability, sleep support (via relaxation, without dependency), and mild blood-pressure-lowering effects for individuals with slightly elevated baselines.
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Boundary Conditions: This is a dietary beverage, not a medical treatment for anxiety disorders, insomnia, or hypertension. While physiological effects are measurable, the absolute GABA volume absorbed from tea is low relative to endogenous brain production or targeted supplements. Antioxidant capacity (polyphenols/catechins) is comparable to standard high-quality oolong/black teas, not universally superior.
