Rainbow mountain when?

We are so glad you like Rainbow Mountain Blend in Japan! We are so excited by the number of customers who already know BOSS and can't wait to bring new flavors. While Rainbow Mountain is not currently slated for release in the US this year, we ARE releasing another flavor in summer 2019 and hope to add more as we see demand in the US. Please be sure to follow us and in the meantime try our great Black or Au Lait flavors. We have pushed your feedback to the team so they are informed on flavors our customers want. Thank you once again, Suntory

Reading reviews and most interested in trying. I only drink hot coffee. Can I heat this coffee or is that a deal killer?

Thank you for your interest in BOSS coffee! We highly recommend drinking BOSS coffee chilled for the best experience. The can should never be placed in a microwave as it is dangerous to do so, but it is possible to heat the liquid after pouring into a mug. We hope you will enjoy BOSS coffee your way, hot or cold!

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Coffee by Suntory - Japanese Flash Brew Original Black Coffee, 8oz 12 Pack, Imported from Japan, Espresso Doubleshot, Ready to Drink, Keto Friendly, Vegan, No Sugar, No Dairy

Product ID: 117898193

Details

Brand
BOSS
Caffeine Content Description
Caffeinated
Flavor
Black
Item Form
Liquid
Roast Level
Dark Roast

⚡140mg caffeine - espresso doubleshot power

🥤Ready-to-drink convenience - on-the-go fuel

❄️Flash brew tech - bold yet smooth flavor

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¥19145

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

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Description

⚡ Sip the future of coffee—bold, clean, and ready when you are!

ULTIMATE ON THE GO COFFEE - Sleek 8oz cans ready to drink anytime, anywhere—ditch sugary sodas and nitro brews for good.
KETO VEGAN FRIENDLY FUEL - Only 10 calories, zero sugar, and dairy-free—perfect for mindful, modern lifestyles.
ESPRESSO DOUBLESHOT ENERGY BOOST - 140mg caffeine per can delivers a powerful, clean energy kick without the crash.
JAPANS 1 CANNED COFFEE BRAND - Crafted by Suntory, the award-winning masters behind Japan’s top coffee and premium spirits.
REVOLUTIONARY FLASH BREWED FLAVOR - High-temp brew rapidly chilled for a bold, smooth taste with zero bitterness.

BOSS Coffee by Suntory is Japan’s top canned coffee brand, featuring a unique flash brew process that locks in bold flavor with a smooth finish. Each 8oz can packs 140mg of caffeine—equivalent to a doubleshot espresso—while being keto-friendly, vegan, sugar-free, and low calorie. Perfectly crafted for busy professionals craving premium, ready-to-drink coffee anytime, anywhere.

Specifications

ASIN	B07PMNR4FR
ASIN	B07PMNR4FR
Best Sellers Rank	#18,251 in Grocery & Gourmet Food ( See Top 100 in Grocery & Gourmet Food ) #27 in Ready to Drink Liquid Coffee
Brand Name	BOSS
Caffeine Content Description	Caffeinated
Caffeine Content Per Serving	140 Milligrams
Coffee Blend Name	BOSS
Coffee Roast Level	Dark Roast
Coffee Type	Prepared Coffee Drink
Container Type	Can
Customer Reviews	4.6 4.6 out of 5 stars (821)
Diet Type	Vegan, Vegetarian
Each Unit Count	12.00
Flavor	Black
Item Dimensions	2.08 x 2.08 x 5.23 inches
Item Form	Liquid
Item Package Weight	3.54 Kilograms
Item Volume	96 Fluid Ounces
Item Weight	8 ounces
Manufacturer	Suntory B&F N.A.
Manufacturer	Suntory B&F N.A.
Number of Items	12
Number of Pieces	12
Product Dimensions	2.08 x 2.08 x 5.23 inches; 8 ounces
Size	8 Fl Oz (Pack of 12)
Special Ingredients	Keto Friendly, Sugar Free
Specialty	Flash Brew
Sweetness Description	Not Sweet
UPC	088857019765
UPC	088857019765
Unit Count	96.0 Fluid Ounces
Units	96.0 Fluid Ounces
Variety	Flash Brew Original Black Coffee, Espresso Doubleshot

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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¥19145

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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