
Ito En
Ito En Oi Ocha Green Tea (with Matcha) 1.8g x 50 bags Eco Tea Bags
Authentic Japanese green tea infused with Kyoto Uji matcha in plant-based pyramid eco tea bags. Steeps in just 20 seconds to deliver vibrant emerald color, rich umami, and natural L-theanine for calm workspace focus.
As an Amazon Associate I earn from qualifying purchases. Price and availability are shown on Amazon and can change.
Why I like it
Japan's #1 Green Tea with Uji Matcha for Clean Workspace Focus
For designers, software engineers, and writers, long hours at the desk require sustained mental endurance without the harsh highs and lows of over-caffeination. While heavy coffee and energy drinks often lead to acidity, dehydration, and mid-afternoon fatigue, traditional Japanese green tea offers a refined cognitive alternative: calm, clean alertness driven by natural L-theanine and gentle green tea antioxidants.
Produced by Ito En (伊藤園)—Japan's most iconic tea master—this Oi Ocha Premium Eco Tea Bag blends fragrant, 100% Japanese domestic sencha (whole green tea needle leaves) with stone-ground Kyoto Uji matcha. The result is an electric emerald-green brew with deep savory umami, sweet aroma, and zero harsh astringency.
Why Ito En Oi Ocha Green Tea is the Ideal Creative Workspace Companion
- The Caffeine + L-Theanine Synergy: Green tea naturally contains L-Theanine, a unique amino acid that crosses the blood-brain barrier to stimulate alpha brain waves (8–12 Hz). Alpha waves are scientifically associated with relaxed mental focus, reduced task anxiety, and heightened creative problem-solving. When paired with caffeine, L-theanine smooths out cardiovascular spikes, preventing jitters and post-caffeine crashes.
- Flash 20-Second Brewing for Busy Workflows: Traditional loose-leaf green tea requires tea strainers, timers, and messy cleanups that disrupt your flow state. Ito En's specialized pyramid eco bags extract rich color, aroma, and flavor in just 20 seconds—allowing you to brew a fresh, hot cup between meetings or design sprints with zero friction.
- Plant-Derived Triangular Eco Mesh Filter: Unlike conventional flat paper tea bags that compress tea leaves, Ito En's proprietary pyramid filter is constructed from plant-based biomass material. The spacious triangular geometry allows whole sencha leaves and stone-ground matcha powder to freely expand and circulate, extracting maximum catechins (EGCG) and umami nutrients.
- Hydration & Zero Stomach Acidity: Bypassing the harsh chlorogenic acids and heavy oils found in roasted coffee beans, steeped sencha is gentle on the stomach lining, alkaline-friendly, and promotes all-day cellular hydration at your desk.
Product Specifications
| Specification | Details |
|---|---|
| Product Name | Ito En Oi Ocha Premium Tea Bag with Uji Matcha (お〜いお茶 プレミアムティーバッグ 宇治抹茶入り緑茶) |
| Brand & Maker | Ito En Co., Ltd. (Tokyo / Kyoto, Japan) |
| Origin & Sourcing | 100% Japanese Domestic Green Tea Leaves & Kyoto Uji Matcha |
| Quantity & Net Weight | 50 Pyramid Eco Tea Bags (1.8g × 50 bags = 90g net weight) |
| Filter Bag Material | Biodegradable plant-derived biomass triangular mesh (Eco Tea Bag) |
| Active Compounds | Natural L-Theanine, EGCG Catechins, Gentle Caffeine, Vitamin C |
| Brewing Time | Hot: 20 seconds (approx. 80°C - 90°C) / Cold brew: 3 minutes with ice |
| Nutritional Profile | 0 Calories, 0g Sugar, 100% Natural Japanese Tea |
| ASIN | B06HLLPT2 |
| Amazon Affiliate Link | https://link.amazon/B06Hllpt2 |
How to Brew at Your Desk (Hot & Cold Brew)
-
Hot Desk Brew (20 Seconds):
- Place one pyramid tea bag into your favorite ceramic mug.
- Pour approximately 120ml to 150ml of hot water (approx. 80°C – 90°C / 176°F – 194°F).
- Move the tea bag up and down 5 to 6 times for 20 seconds until a deep, luminous jade green emerges.
- Remove the bag onto a coaster and enjoy clean, aromatic warmth.
-
Iced Cold Brew Refreshment (3 Minutes):
- Place one tea bag in a tall glass with 150ml cold water and ice cubes.
- Stir gently and let steep for 3 minutes for crisp, sweet, refreshing cold green tea.
Japan's #1 Green Tea with Uji Matcha for Clean Workspace Focus
100% Domestic Japanese Sencha & Uji Matcha
Finely ground stone-milled Kyoto Uji matcha coats whole domestic green tea leaves for rapid color, deep umami, and sweet aroma.
Rapid 20-Second High-Output Brewing
Designed for busy desk workflows—steeps completely in just 20 seconds with hot water or cold brews smoothly in iced water.
Triangular Eco Pyramid Filter Bags
Spacious plant-derived biomass mesh allows tea leaves to freely expand and circulate, releasing rich catechins and L-theanine.
50 Individually Wrapped Servings
Each 1.8g tea bag is packed for desktop convenience—50 clean servings provide over a month of daily mindful creative flow.
20-Second Pyramid Infusion. Pure Japanese Sencha & Uji Matcha.
Crafted in Japan with 100% domestic tea leaves and stone-ground Uji matcha in plant-based triangular eco filter bags.

Desk Focus & L-Theanine Calm
A steaming cup of Oi Ocha brings tranquil clarity to intense creative blocks. The natural L-Theanine amino acids stimulate alpha-wave focus, calming neural noise while sustaining clean, jitter-free mental stamina without coffee crashes.

High-Flow Eco Pyramid Mesh
Unlike flat paper bags that restrict water flow, Ito En's proprietary pyramid filter offers high water permeability. Whole leaves have ample room to unfold, extracting optimal antioxidants and sweet umami in a fraction of standard brew time.

Whole Domestic Leaves & Stone-Ground Matcha
By marrying first-rate Japanese sencha needle leaves with micro-fine Uji matcha, the infusion delivers instantaneous vibrant emerald coloration and deep savory depth with zero harsh bitterness or grassy astringency.

Zero-Fuss Mindful Desk Ritual
Simply drop one pyramid tea bag into your mug, pour hot water (approx. 80°C - 90°C), bounce the tag 5-6 times for 20 seconds, and enjoy. No drippy strainers, no teapot cleanup, and zero sticky spills around your desk peripherals.
The Most Convenient, High-Quality Japanese Desk Tea Ever Made
“Ito En's Oi Ocha with Uji Matcha is a staple in Japanese creative studios for good reason. The pyramid eco bag brews a rich, electric-green cup of sencha in literally 20 seconds. Paired with clean caffeine tablets, it provides the ultimate calm focus stack for multi-hour deep work.”
Why it made the cut:
- 100% Japanese domestic green tea leaves blended with vibrant Kyoto Uji matcha
- Steeps to perfection in just 20 seconds without bitterness or tea mess
- Plant-derived triangular pyramid eco mesh bags allow full leaf expansion
- Generous 50-bag count delivers extraordinary daily value for knowledge workers
- High L-theanine content delivers calm, focused alertness without coffee jitters
Designers, programmers, writers, and anyone looking for rapid, premium Japanese green tea focus at their desk.
Technical Specifications & Dimensions
- Product Name
- Ito En Oi Ocha Premium Tea Bag with Uji Matcha (お〜いお茶 プレミアムティーバッグ 宇治抹茶入り緑茶)
- Brand & Maker
- Ito En Co., Ltd. (Tokyo / Kyoto, Japan)
- Origin
- 100% Domestic Japanese Green Tea Leaves (Uji Matcha blend)
- Quantity & Content
- 50 Pyramid Eco Tea Bags (1.8g × 50 bags = 90g net weight)
- Filter Material
- Plant-derived biomass biodegradable triangular mesh (Eco Tea Bag)
- Brewing Time
- Hot: 20 seconds (approx. 80°C - 90°C) / Cold brew: 3 minutes with ice
- Caffeine & Compounds
- Naturally rich in L-theanine, EGCG catechins, Vitamin C, zero calories
- ASIN
- B06HLLPT2
- Amazon Link
- https://link.amazon/B06Hllpt2
You might also like
Related Buying Guides & Articles
In-depth breakdowns, setup inspiration, and creative workflows featuring this gear.



