---
product_id: 710694369
title: "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"
brand: "boss"
price: "₨496"
currency: SCR
in_stock: false
reviews_count: 5
category: "Boss"
url: https://www.desertcart.sc/products/710694369-boss-coffee-by-suntory-rainbow-mountain-blend-japanese-flash-brew
store_origin: SC
region: Seychelles
---

# 120mg caffeine per 6oz can 7-region premium bean blend Contains real milk for smoothness 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

**Brand:** boss
**Price:** ₨496
**Availability:** ❌ Out of Stock

## Summary

> 🌟 Sip the Rainbow, Own Your Hustle!

## Quick Answers

- **What is this?** 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 by boss
- **How much does it cost?** ₨496 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/710694369-boss-coffee-by-suntory-rainbow-mountain-blend-japanese-flash-brew)

## Best For

- boss enthusiasts

## Why This Product

- Trusted boss brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Flash Brewed Freshness:** Innovative flash brewing locks in rich aroma and smooth taste with a hint of sweetness.
- • **Globally Curated Beans:** Expertly sourced from seven Guatemalan regions for a uniquely balanced flavor profile.
- • **Gluten-Free & Guilt-Free:** Enjoy a creamy, sweetened coffee without gluten, perfect for mindful millennials.
- • **Pocket-Ready Power Boost:** Compact 6oz cans deliver a bold espresso double shot anytime, anywhere.
- • **Authentic Japanese Craftsmanship:** Imported directly from Japan, bringing you the cult-favorite coffee experience loved by thousands.

## Overview

BOSS Coffee Rainbow Mountain Blend is a premium ready-to-drink espresso doubleshot canned coffee imported from Japan. Flash brewed from a unique blend of beans sourced from seven Guatemalan regions, it offers a smooth, sweetened coffee experience with real milk and no gluten. Each 6oz can packs 120mg of caffeine, perfect for on-the-go energy with authentic Japanese quality.

## Description

BOSS Coffee Rainbow Mountain Blend is Suntory's signature canned coffee in Japan. Using beans carefully selected from seven grow regions under the management of Anacafe in Guatemala, we flash-brew our coffee to create a bold and well-balanced coffee with a dash of milk and sugar. We are delighted to bring you Rainbow Mountain Blend with the same great flavor and packaging straight from Japan.

Review: 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? :)
Review: Delish! Worth Every Penny, No Doubt! - Not quite as pristine as the black but still so yummy. They call it BOSS for good reason… it leads head and shoulders above the rest! Slightly smokey, clean and smooth. Perfect pick me up treat in the afternoon. I regret nothing!

## Features

- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08L4KNBV6 |
| Brand | BOSS |
| Brand Name | BOSS |
| Caffeine Content Description | Caffeinated |
| Coffee Blend Name | Rainbow Mountain Blend |
| Coffee Roast Level | Light Roast |
| Coffee Type | Prepared Coffee Drink |
| Container Type | Bag |
| Customer Reviews | 4.6 out of 5 stars 1,053 Reviews |
| Diet Type | Gluten Free |
| Flavor | Coffee with milk and sugar |
| Flavour | Coffee with milk and sugar |
| Item Dimensions | 5.3 x 5.3 x 10.5 centimeters |
| Item Form | Liquid |
| Item Package Weight | 2.77 Kilograms |
| Item Volume | 2128.8 Milliliters |
| Item Weight | 0.38 Pounds |
| Item form | Liquid |
| Number of Items | 12 |
| Package Size Name | 72 Fl Oz |
| Package information | Bag |
| Roasting level | Light Roast |
| Size | 6oz |
| Special Ingredients | Milk, Sugar |
| Sweetness Description | sweet |
| UPC | 088857019949 |
| Unit Count | 72.0 Fluid Ounces |
| Variety | Rainbow Mountain Blend Espresso Doubleshot |

## Product Details

- **Brand:** BOSS
- **Caffeine Content Description:** Caffeinated
- **Flavour:** Coffee with milk and sugar
- **Item form:** Liquid
- **Roasting level:** Light Roast

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/819RtFl76DL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/71deT6EIF-L.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/81yIgE20EoL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/91nd81PnoLL.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/81Td3eGiVnL.jpg)

## Questions & Answers

**Q: Anyone know if this is actually brewed and canned in japan, or is it just the recipe from japan and canned in the us?**
A: Thank you for your interest in BOSS coffee.
All BOSS US products (At Cafe Au Lait, Rainbow Mountain and Black) are brewed and canned in japan.
They are all exported from Japan.
We hope you will enjoy BOSS coffee!

**Q: Do these need to or can be refrigerated?**
A: They do not have to be refrigerated . They taste better hot or cold. I prefer cold.

**Q: Anyone know why only the coffee is sold and not the tea? Tried contacting seller but no luck so posting here in hopes for a reply.**
A: Probably gauging interest in the brand. If you’re in the US, coffee is universally more consumed than tea (I prefer tea). The coffee being available online is relatively new. They also must be experiencing difficulties in the warehouse as there are tons of cans that will arrive dented and damaged while the outer box looks untouched. This appears to be an issue with how the individual cans are packaged as opposed to Amazon delivery methods. So TLDR: give it some time and they might bring tea as well

**Q: Once empty, can these cans be crushed?**
A: If you put enough force into it then yeah, they should be crushable

## Customer Reviews

### ⭐⭐⭐⭐⭐ Wow. Where do I even begin?
*by M***N on 30 December 2020*

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? :)

### ⭐⭐⭐⭐⭐ Delish! Worth Every Penny, No Doubt!
*by P***U on 15 June 2026*

Not quite as pristine as the black but still so yummy. They call it BOSS for good reason… it leads head and shoulders above the rest! Slightly smokey, clean and smooth. Perfect pick me up treat in the afternoon. I regret nothing!

### ⭐⭐⭐⭐⭐ Refilled my HEAT gauge.
*by D***D on 12 May 2026*

Bought this as a fan of Yakuza, got made a fan of BOSS coffee. Genuinely, insanely good coffee that beats the hell out of Starbucks RTD's which by my estimation, are far more concerned with sugar than coffee. 110mg of caffeine per can means you're getting a kick without blowing your heart valves and the modest size means you can easily put down a can in its entirety in a sitting, as well as it being convenient for travel. I wish this was cheaper or more readily available, I would drink this regularly if I could.

## Frequently Bought Together

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

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-09-20*