is there caffeine in this?

Please see http://www.itoen.com/ready-to-drink/oi-ocha/oi-ocha-dark-16-9-fl-oz-12-bottles-case, which is worded confusingly, saying that it has 50 mg per 8 oz even though each bottle is 16.9 oz, so it's actually a bit north of 100 mg. If you want less caffeine, the non-bold version only has 60 mg per bottle.

Does the cold green tea have the same health benefits as hot green tea?

I think what you want to ask is: does bottled tea have the same health benefits as freshly brewed tea? I heard that it doesn't. I think you lose some healthy components like within an hour after it is brewed. I don't think Bottling preserves everything good in fresh tea. I bet this has been researched. Wonder what good things are left in bottled teas, and if there's any Bad components created. Pretty sure plastic bottles will add some bad components.

Is this product made in Japan or China? I've seen product listing that state one or the other ... Thank you!

This clearly states on the box they come in and the bottles that it's a product of Taiwan. It is misleading because their Amazon account says made in Japan etc... The leaves might be from Japan but it's not a product of Japan. I was dissapointed when I saw this but I still like the tea.

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Description

🍵 Sip Smart, Live Sharp — Japan’s #1 Green Tea Refreshment

PURE WHOLE LEAF BREW - Experience authentic Japanese green tea brewed from first flush whole leaves, preserving maximum antioxidants and natural flavor.
ANTIOXIDANT POWERHOUSE - Packed with catechins and natural antioxidants, it supports your wellness goals and keeps you feeling sharp and energized.
CLEAN REFRESHING HYDRATION - Unsweetened and additive-free, this green tea offers a crisp, natural taste that revitalizes without any artificial aftertaste.
LOW CALORIE LIFESTYLE CHOICE - At just 5 calories per 16.9 oz bottle, it’s the perfect guilt-free alternative to sugary sodas and flavored coffees.
CONVENIENT ON THE GO WELLNESS - Ready-to-drink in a sleek bottle, it fits seamlessly into your busy, health-conscious lifestyle—stay refreshed anytime, anywhere.

Ito En Oi Ocha Unsweetened Green Tea is a premium, ready-to-drink beverage brewed from first flush whole green tea leaves harvested in Japan. With zero sugars or artificial additives and only 5 calories per bottle, it delivers a clean, refreshing taste rich in antioxidants and moderate caffeine. Perfect for health-conscious professionals seeking a natural, low-calorie hydration alternative that supports wellness and productivity.

Specifications

ASIN	B0017T2MWW
Allergen Information	Dairy Free, Gluten Free
Best Sellers Rank	#423 in Grocery & Gourmet Food ( See Top 100 in Grocery & Gourmet Food ) #4 in Green Tea
Brand	ITO EN
Brand Name	ITO EN
Caffeine Content Description	Medium Caffeine
Container Type	Bottle
Customer Reviews	4.5 out of 5 stars 8,488 Reviews
Each Unit Count	16.9
Flavor	Green Tea
Global Trade Identification Number	20835143001058
Item Dimensions	2.6 x 2.6 x 8.11 inches
Item Form	Liquid
Item Type Name	Green Tea
Item Volume	202.8 Fluid Ounces
Item Weight	202.8 Ounces
Liquid Contents Description	Coffee & Tea Drinks
Manufacturer	Ito En
Model Number	835143001047
Number of Items	12
Part Number	835143001399
Product Benefits	Low Calorie, Antioxidant Rich, Healthy Refreshment
Region of Origin	Asia
Special Ingredients	Green Tea
Specialty	Antioxidant, Low Calorie, Natural, Organic, Unsweetened
Sweetness Description	Unsweetened
Tea Variety	Green
Unit Count	6000 Milliliters

Reviews

K**S

10.04.2026

A**S

22.03.2026

R**M

5.02.2026

L**E

7.03.2026

J**K

11.07.2023

A**M

5.07.2013

P**1

8.03.2026

S**E

7.04.2026

I**R

28.10.2024

C**Y

21.05.2015

G**R

3.05.2015

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