BOSS 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

BOSS 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

Q: 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

Q: 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!

4.6/5

Product ID: 711234352

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Details

Item form
Liquid
Flavour
Black
Caffeine Content Description
Caffeinated
Roasting level
Dark Roast
Package information
Can

⚡140mg caffeine punch

🔥Flash brewed for bold flavor

🥥Keto & vegan, zero sugar

Frequently Bought Together

BOSS 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

BOSS Coffee by Suntory - Japanese Flash Brew Coffee with Milk, 8oz 12 Pack, Imported from Japan, Au Lait, Espresso Doubleshot, Ready to Drink, Contains Milk, No Gluten

BOSS Coffee by Suntory – Rainbow Mountain Blend Japanese Flash Brew Coffee, 6oz 12 Pack, Imported from Japan, Espresso Doubleshot, Ready to Drink, Contains Milk, No Gluten

Description

⚡ Elevate your grind with Japan’s original flash brew energy!

CLEAN LEAN FORMULA - Only 10 calories with zero sugar and no dairy—perfect for mindful living.
KETO VEGAN FRIENDLY - Designed to fit your lifestyle without compromise—gluten-free, sugar-free, and dairy-free.
POWER PACKED ENERGY BOOST - 140mg caffeine per can fuels your hustle like a double espresso shot.
READY TO DRINK CONVENIENCE - Grab-and-go 8oz cans keep you energized anytime, anywhere—no brewing required.
AUTHENTIC JAPANESE CRAFTSMANSHIP - Imported and flash brewed in Japan for a rich, smooth taste that stands out.

BOSS Coffee by Suntory is a premium Japanese flash brewed black coffee, delivering 140mg of natural caffeine in a low-calorie, sugar-free, keto and vegan-friendly 8oz can. Imported from Japan, this ready-to-drink espresso doubleshot offers a bold, smooth flavor without additives, perfect for health-conscious professionals seeking a clean energy boost on the go.