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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Ito En Tea Oi Ocha Green Tea, Unsweetened, 16.9 Ounce (Pack of 12)

Ito En Tea Oi Ocha Green Tea, Unsweetened, 16.9 Ounce (Pack of 12)

Product ID: 1335294

Details

Brand
ITO EN
Flavor
Green Tea
Item Form
Liquid
Tea Variety
Green
Unit Count
202.8 Fluid

⚡Medium caffeine boost

🍃100% whole leaf brewed

🔥Only 5 calories per bottle

Description

🍵 Sip Smart, Live Sharp — The Ultimate Green Tea Upgrade

PURE WHOLE LEAF POWER - Brewed from first flush Japanese green tea leaves, not powders or concentrates, preserving full health benefits.
CLEAN CRISP HYDRATION - Naturally refreshing and unsweetened—ditch sugary sodas and stay sharp on the go.
ANTIOXIDANT RICH WELLNESS - Packed with natural catechins to support your health, vitality, and mental clarity.
ICONIC JAPANESE CRAFTSMANSHIP - From Japan’s #1 green tea brand, trusted for decades by health-conscious professionals worldwide.
ZERO ADDITIVES ALL AUTHENTIC - No artificial colors, flavors, or sweeteners—just pure, premium green tea goodness.

Ito En Oi Ocha Green Tea is a premium, unsweetened beverage brewed from first flush whole green tea leaves harvested in Japan. With zero sugars, only 5 calories per 16.9 oz bottle, and medium caffeine content, it offers a clean, antioxidant-rich hydration alternative to sugary drinks. Free from artificial additives, this iconic green tea delivers authentic Japanese craftsmanship in a convenient ready-to-drink format, perfect for health-conscious millennials seeking natural wellness and refreshment on the go.

Specifications

ASIN	B0017T2MWW
ASIN	B0017T2MWW
Allergen Information	Dairy Free, Gluten Free
Best Sellers Rank	#2,944 in Grocery & Gourmet Food ( See Top 100 in Grocery & Gourmet Food ) #14 in Green Tea
Brand Name	ITO EN
Caffeine Content Description	Medium Caffeine
Container Type	Bottle
Customer Reviews	4.5 4.5 out of 5 stars (8,619)
Each Unit Count	16.9
Flavor	Green Tea
Global Trade Identification Number	20835143001058
Item Dimensions	10.5 x 8 x 8.5 inches
Item Form	Liquid
Item Type Name	Green Tea
Item Volume	202.8 fluid ounces
Item Weight	6704 g
Item model number	835143001047
Liquid Contents Description	Coffee & Tea Drinks
Manufacturer	Ito En
Manufacturer	Ito En
Model Number	835143001047
Number of Items	12
Package Size Name	Pack of 12
Part Number	835143001399
Product Benefits	Low Calorie, Antioxidant Rich, Healthy Refreshment
Product Dimensions	10.5 x 8 x 8.5 inches; 14.78 pounds
Region of Origin	Asia
Special Ingredients	Green Tea
Specialty	Antioxidant, Low Calorie, Natural, Organic, Unsweetened
Sweetness Description	Unsweetened
Tea Variety	Green
Unit Count	202.8 Fluid Ounces
Units	202.8 Fluid Ounces

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