Innovative Collaboration: KBT Kombucha Meets Single O Coffee Roasters with Lemon Myrtle

An Innovative Twist: KBT Kombucha and Single O Coffee Roasters Collaboration

In an exciting fusion of flavors and cultures, Tokyo-based KBT Kombucha and Sydney's renowned specialty coffee roaster, Single O, are joining forces to launch a one-of-a-kind kombucha. Highlighting the freshness of the Australian native herb, lemon myrtle, this collaboration promises to offer a refreshing new addition to the beverage landscape.

Starting September 12, 2025, this unique kombucha will be exclusively available at all Single O locations in Tokyo, before extending to KBT's online store and flagship store, KBT STAND in Ryogoku, from October 1 to November 30, 2025.

Understanding Kombucha

First things first, kombucha is much more than a trendy beverage. Distinct from 'kombucha tea', this plant-based drink is crafted from fermented tea, signaling a seismic shift towards gut health and the next generation of wellness drinks. Japan’s familiarity with kombucha dates back to the 1970s when it gained popularity as 'red tea fungus.' Kombucha is brewed using tea leaves, sugar, water, and a gelatinous culture known as SCOBY (Symbiotic Culture Of Bacteria and Yeast). This drink is gluten-free and dairy-free, packed with various probiotics that have captured the attention of health enthusiasts worldwide, particularly in the USA and Europe.

What is Lemon Myrtle?

Enter lemon myrtle – a remarkable herb indigenous to Australia. This aromatic leaf is celebrated for its vibrant citrus fragrance and delightful tang, often stronger than that of traditional lemon or lemongrass. In this collaboration, the high-quality lemon myrtle tea leaves from Single O are being harnessed, enhancing KBT’s fermentation techniques to create a light, refreshing kombucha that complements both meals and daily moments of uplift.

Product Details

- Product Name: KBT Lemon Myrtle
- Ingredients: Beet sugar (sourced from Japan), dried herb (Australian)
- Shelf Life: Four months from the manufacturing date (unopened).

Regarded as the 'Queen of Lemon Herbs', lemon myrtle is characterized by its potent fragrance that resonates well beyond that of standard lemons. Integrating this herb into kombucha not only introduces delightful aromas and flavors, giving it a unique twist, but also enhances the brew with the fermented depth and subtle sweetness.

Remarks from the Creators

KBT’s representative, Kana Yabuuchi, commented, "We are dedicated to creating a kombucha that not only serves as a gut-supportive drink but also offers a sophisticated depth akin to wine. Through this collaboration with Single O, we are proud to showcase the unique qualities of lemon myrtle, hoping to familiarize many with this exquisite herb."

Equally enthusiastic, Single O’s representative, Toru Yamamoto, stated, "At Single O, we emphasize quality in every ingredient we serve. Lemon myrtle is a symbol of our roots in Australia, and we are thrilled to express its charm in a new light through this collaboration with KBT."

Where and When to Buy

Single O Locations

- Launch Date: Starting September 12, 2025
- Available Venues: Single O Ryogoku Cafe, Hamacho Cafe, Shibuya Cafe, Kanda Awajicho Cafe, Yurakucho Cafe
- Pricing: ¥700/glass, ¥1,200/200ml, ¥3,600/720ml (all prices include tax)

KBT Official Online Shop & KBT STAND

- Sales Period: October 1 to November 30, 2025
- Pricing: ¥3,564/720ml; ¥1,188/200ml (available only at KBT STAND); ¥2,376 for a two-bottle set of 200ml (official online only) (all prices inclusive of tax)

About KBT - Kombucha Brewery Tokyo

Founded in 2021 by active editor Kana Yabuuchi in Shibuya, KBT Kombucha has rapidly gained recognition for its craft approach to brewing kombucha. With flavors reminiscent of natural wine, KBT kombucha stands out for its unique fermentation profile, devoid of preservatives or artificial flavors. Operating from a charming house in Ryogoku, originally a traditional confectionery store, they have established KBT STAND, a bar and shop, dedicated to spreading this new generation of fermented beverages both domestically and internationally.

- Website: KBT Kombucha
- KBT Instagram: @kbtkombucha

About Single O

Single O strives to be a responsible brand that enhances not just the coffee experience but also the environment surrounding it. Recognizing the importance of sustainable partnerships with producers and addressing climate change, they focus on upcycling green bean bags, selecting sustainable materials, and improving the overall coffee supply chain. Here in Kanda Awajicho, they look forward to creating a delightful coffee experience enriched by meaningful collaborations.