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BOSS

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

    • Based on 1,061 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Feb 1
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Features

  • NO.1 CANNED COFFEE BRAND IN JAPAN - Conveniently found in vending machines and convenience stores across the country, Suntory has innovated BOSS Coffee for over 30 years to become the no.1 canned coffee brand in Japan (2021, Intage).
  • RAINBOW MOUNTAIN BLEND - Using beans sourced from seven grow regions managed by Guatemalan Coffee Association farmers, Suntorys expert brewers blend the unique flavors produced in diverse climates to create our signature Rainbow Mountain Blend.
  • STRAIGHT FROM JAPAN - Due to popular demand from BOSS fans, we are delighted to bring Rainbow Mountain Blend, with the same great packaging and flavor as in Japan, to the US market. Enjoy an authentic taste of Japanese coffee culture.
  • READY TO DRINK COFFEE - Rainbow Mountain's 6 fl.oz can is perfect to slip into a pocket or bag and take on-the-go for a high quality coffee pick-me-up anytime, anywhere.
  • NATURALLY BREWED CAFFEINE - With only 70 calories and 110mg of naturally brewed caffeine, don't underestimate this handy can size. Rainbow Mountain Blend packs the equivalent of a doubleshot of espresso in every can, more than enough to get you going.

Brand: BOSS


Item Form: Liquid


Flavor: Coffee with milk and sugar


Caffeine Content Description: Caffeinated


Roast Level: light_roast


Product Dimensions ‏ : ‎ 2.08 x 2.08 x 4.13 inches; 6 Ounces


UPC ‏ : ‎


Manufacturer ‏ : ‎ Suntory B&F N.A.


Country of Origin ‏ : ‎ Japan


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Feb 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Wow. Where do I even begin?
Let me take you back to October of 2017. I had made my first trip to the wonderful land of Japan and nestled in among the good people who live there. During my stop in Kyushu, I ran across this BOSS Rainbow Mountain Blend coffee at an AEON Mall. At the behest of my friend who I was staying with at the time, I bought some to consume on the spot. It was already chilled, and as soon as the coffee hit my taste buds, I was in for a real treat. I was sure to buy up some more to take home with me on the flight back to America. Don't let the 6 oz size fool you. These little coffees pack a wallop and the taste is phenomenal. Even though I'm not one to get cream or sugar in my coffee (as Brian Griffin says, I like mine black as sin), the combo of everything feels just right. The quality of the roast is quite solid. Consisting of slightly woody notes, with not a sign of burnt flavor, this should appease any coffee snob anywhere. I'm so glad Suntory finally came to their senses and started properly importing this stateside for our enjoyment. The price is certainly higher than your typical Starbucks brew, but this really is a unique experience, almost a rite of passage that everyone should go through, and a good taste of what the Japanese like to call quality coffee. This beverage gets my seal of approval. Even if you find the price a bit too high, I'd still consider getting one case for the novelty factor and, who knows, maybe you'll get hooked? :) ... show more
Reviewed in the United States on December 30, 2020 by Mark Twain
    • Rainbow Mountain Blend, the apex of Japanese canned coffee culture.
Review Image by Boss Coffee Aficionado Boss Coffee Aficionado
In Japan, people are always on the go; which is why Japan is a country that heavily strives for convenience. Canned Coffee was invented in the 1950’s for exactly that purpose. A quick pick me up, in a can, on the go. Originally conceived by UCC, Suntory absolutely perfected RTD (Ready-To-Drink) canned Coffee in the 90’s with their BOSS brand, and with it, the signature ‘Rainbow Mountain Blend’. What separates Rainbow Mountain from the rest, is its undeniable balance, and uncompromising depth of flavor. Not too sweet, not too bitter, small can, but a sizable caffeine dose. Rainbow Mountain has been notorious coveted by aficionado’s here in the States for several reasons. For one thing, prominence of Japanese culture has been on the rise for more than a decade, which means some curiosity likely stemmed from the fantastically entertaining ‘Alien Jones’ Japanese TV spots featuring the product in Japan (which I highly recommend as a quick but satisfying internet search). Secondly, the product was incredibly difficult to get ahold of before Suntory decided to bring it over. I for one am truly delighted that Suntory graced us with this absolute gem of a product. The BOSS brand has an indelible mantra surrounding it, that embodies the work life culture in Japan. People work hard to be their absolute best, and coffee is a staple that helps empower them. Suntory has applied that ideology into making a superior coffee product that leaves the consumer feeling as though they’re ‘The Boss’. That’s why BOSS Coffee will always be my #1. ... show more
Reviewed in the United States on February 3, 2021 by Boss Coffee Aficionado Boss Coffee Aficionado
    • Tastes good, perfect pick-you-upper
I am going through a lot of coffees at work and this one is of the most naturally and better tasting. Medium caffeine content, easy to scale up or down.
Reviewed in the United States on September 18, 2023 by Werehamster
    • Taste The Rainbow
BOSS Rainbow Blend has landed in the states… officially! The company who makes this (Suntory) is also a bottler for Pepsi products in the southeast U.S. and, I think, use their warehouse as a distribution center for wholesaling. How that relates to the review is that this product will hopefully become more easily found in grocery stores than it has before. Other BOSS products seems to be heading in that direction as well. The product is indeed made and bottled in Japan, but the label is completely in English, with the US nutrition label on the label. Far from bitter, the high caffeine content gives it that “rainbow”, majestic vibe, as you gradually come to life with each sip of this Guatemalan origin coffee. So incredibly delicious that you come to appreciate the compact size for the punch it packs. The “dented cans” appear to be a real issue, I had at least one slightly dented can along the middle of the can’s body. However, there were no leaks and the taste of the coffee wasn’t affected. At over $2 a can though, you shouldn’t ask any less than perfection. I bought these cans at around $25 for 12 and thought that were high already, but it looks like that was a sale price since it went up again. Overall? Good but expensive. I think back to those Illy Caffe 6.8oz shots. You pay a premium for premium taste, and it is helpful to keep in mind that unlike the Illy cans, the Rainbow Blend travels an ocean to get to us. Not bad, Suntory. ... show more
Reviewed in the United States on April 15, 2021 by The Super-Intellectual Reviewer
    • Tasty 😋
My daughter found these in a store and wanted them but shipping was expensive. So I found them here and she loved them. She said it’s just enough sugar and milk.
Reviewed in the United States on January 5, 2024 by Dottie Davis
    • Great coffee at a high price
The good: This is fantastic canned coffee, very convenient to drink. It's the best coffee you can get, in my opinion, from Suntory, and so if you're a fan of their coffee you have to try it. The bad: The price is obviously a bit steep; at $30 it's $2.50 per can of coffee. Whether you think that's worth a good can of coffee is up to you. It's produced in Japan and distributed by a local branch of Suntory in the US from what I understand, though mine shipped from Ontario. ... show more
Reviewed in the United States on January 30, 2021 by U.S. Reader
    • Personally not a fan
Honestly I’m not a fan of the taste. Mainly a cold brew drinker. However, everyone I gave one to absolutely LOVED them. 1 person vs 10 others? Yeah they get 5 stars
Reviewed in the United States on September 25, 2023 by Paris Felt

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