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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!

Product ID: 117898193

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⚡140mg caffeine per can

🥥Keto friendly, no sugar, no dairy

❄️Flash brewed & rapidly chilled

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 boldest flash brew!

READY WHEN YOU ARE - Convenient 8oz cans perfect for on-the-go professionals craving premium coffee.
ZERO GUILT ALL FLAVOR - Only 10 calories, sugar-free, dairy-free, and keto-friendly for clean energy.
FLASH BREWED FOR BOLDNESS - High-temp brew then rapid chill locks in rich flavor with zero bitterness.
JAPANS 1 CANNED COFFEE - Suntory’s award-winning craft, imported straight from Japan’s top coffee brand.
POWER PACKED ESPRESSO BOOST - 140mg caffeine delivers a bold doubleshot energy hit to fuel your hustle.

BOSSCoffee by Suntory is Japan’s top canned coffee brand, delivering a flash brewed, espresso-strength black coffee with 140mg caffeine per 8oz can. Imported from Japan, it’s keto-friendly, vegan, sugar-free, and dairy-free, offering a smooth, bold flavor with only 10 calories—perfect for busy professionals seeking a premium ready-to-drink coffee experience.

Have a Question? See What Others Asked

Rainbow mountain when?

Does this contain caffiene?

When will it be back in stock?? please!

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

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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.

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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.

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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.

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