Music

Since joining forces, Bluetoof and Jossy Mitsu have expanded their creativity with science fiction-informed worldbuilding and exploration of fresh sonic territory. They share a peak-time mix and speak to Tibor Heskett about expanding the BLUMITSU universe

• Words: Tibor Heskett | Photos: @_sullman
• 10 December 2025

BLUMITSU is the electric combination of Bluetoof and Jossy Mitsu. Rooted in electro while retaining a distinct UK flair, the duo have been catapulted to the worldwide stage following hit releases on legacy dubstep label Tempa and their own imprint BLUMITSU LABORATORIES. Standout performances at fabric, Glastonbury, Horst and UNFOLD where the duo weave together their own productions — including custom intros for every set and their “B-L-U-M-I-T-S-U” tagline which fans know and perform their very own YMCA to — with electro, techno, house and bass reflect a confidence to mix anything together.

The latest offering from BLUMITSU, ‘Test Tube’, sees them fuse electro sonics with a sexy tech-house edge and playful vocals from Mitsu: “I might test you, in my test tube, gotta get that data inside.” Conceived during a writing camp that took place at the backend of their Asia tour last year, the track is part of a new approach to “making music without being too serious” that also produced ‘Pinahoelada’, a Mixmag favourite. These songs reflect an ambition for BLUMITSU to go beyond the club.

Bluetoof’s musical journey has been intertwined with Mitsu’s since the very beginning, as the latter gave the former his first radio play on her Rinse FM residency. This gave the young producer the confidence to move to London and pursue a career in music. Years later, by pure coincidence, Bluetoof and Jossy Mitsu would have weekly shows on the same London radio station one after the other, and it is there that they struck up a camaraderie which led to them sharing a studio space in FOLD. Experimenting together at the studio and on the radio, where they would occasionally merge their shows together for a two-hour B2B, led to an instant chemical reaction. There was no going back from this. BLUMITSU was formed.

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The initial premise of the project was to provide Bluetoof and Mitsu the freedom to explore the headsier lanes of techno and electro. Bluetoof had made his name in the garage scene alongside DJs such as Interplanetary Criminal, Main Phase and Dr Dubplate whereas Jossy Mitsu had come up playing the full spectrum of bass music as part of the Six Figure Gang collective featuring LCN (FKA LCY), SHERELLE, Yazzus, Fauzia and Dobbs. BLUMITSU was a blank canvas: free from these associations and an opportunity to get creative.

Electro and science fiction have come hand in hand since the very beginning. From Kraftwerk taking on robotic personas and the Afrofuturist imagery adopted by key players in the US such as Drexciya, Cybotron/Model 500, Egyptian Lover, and more, to modern contemporaries like Client_03 toying with concepts of futuristic tech, there has been a long standing relationship. It felt natural for BLUMITSU to follow this lineage, especially given Jossy Mitsu’s background in biology having studied it at university and then worked in a COVID testing facility during lockdown. It has become a bedrock of their identity.

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The mechanical zaps of 808s, cold metallic basslines and Mitsu’s robotic vocals all play into this theme however it is in their visuals where they truly double down on it. Since their inception BLUMITSU have brought a physicality to their work, handing out vials of ‘The Formula’ at their DJ sets, donning hazmats on Just Jam, KINDRED and The Lot Radio plus hosting their first audio-visual “immersive experiment” at Ormside Projects in March. Over the past three years BLUMITSU have been meticulously building their world. Now they are ready to take over ours.

Following on from their Tempa EP ‘Metamorphic’, which Bluetoof acknowledges as a huge milestone for the pair “given it was our first vinyl release”, BLUMITSU have adopted a more playful and accessible approach to recent productions. ‘Pinahoelada’ and new single ‘Test Tube’ sound more like fully fledged songs than dancefloor tools, with the vocals being pushed to the forefront. We spoke to the duo about their latest sonic evolution and what the future holds for their collaboration.

‘Test Tube’ just came out last month and, like ‘Pinahoelaeda’ before it, showcases a more fun and sexy side to BLUMITSU productions.

We made the tracks at a writing camp at the end of our Asia tour in Thailand where there was a mindset to just follow what naturally came out of us without any pressure to bind us to a specific genre like electro or techno. We wanted to just have fun basically. ‘Pinahoelada’ is still very electro-oriented and quite dark but both tracks have a strong vocal focus and ‘Test Tube’ signifies us moving into a more accessible space.

It takes on more of a song format with provocative lyrics that appeal to a wider audience. We grew up listening to 2010s UK house music and we wanted to incorporate that into our own sound.

It’s interesting that you mention a pressure to make electro or techno because when the BLUMITSU project started it was as an offshoot to explore that very sound.

The parameters and limits of the project have widened as it has gotten more intense. We’ve been putting more time, love and energy into the collaboration to the point where it’s become a bit more of a forefront for both of our careers. The scope has widened and we’ve built an aesthetic and vibe that we can transfer to other genres while still retaining the core ideology of BLUMITSU.

**Read this next: **“More risk-taking”: Jossy Mitsu is spreading her wings

There has always been an intention for BLUMITSU to be much more than just two DJs joining forces and playing B2B. Is the future for the project moving away from dance music and further into this song territory you mentioned?

In our two most recent EPs, ‘Test Tube’ and ‘Pinahoelada’, we’ve led with a vocal song on the A-side. while having a club tool on the B-side. We’re evolving while still paying respect to where we came from.

By the point of BLUMITSU’s formation you were both already quite established DJs. Was there a risk in starting from scratch again? Did you find there were any challenges in building something new?

It was refreshing to start from a clean slate. When we started the project we wanted to explore genres we were less known for and that risk has paid off.

One of the most striking things about BLUMITSU is the strong imagery used for your artwork and music videos. Where did this inspiration come from?

From the very beginning we were inspired by acts like Drexiciya and the Chemical Brothers who had strong visual themes and worldbuilding elements. We wanted to add a visual identity to the project and choosing a science-based thematic was a way to separate BLUMITSU from our solo projects.

When we started wearing the hazmats, for example, it was about eliminating information. There’s no brand or colour on them, it’s a blank canvas.

We also use physical objects to accentuate the world we are building, such as masks and vials of The Formula given out at events.

We’re nearing the end of the year, what has been your highlight of 2025?

Our *Tempa *EP, ‘Metamorphic’. To be their first vinyl release after 10 years was a big responsibility and proud achievement for us. We wanted to pay homage to the heritage of the label while still pushing things forward.

**Read this next: **Bluetoof is using narrative-driven bass to reconnect with his heritage

What can we expect from you next year?

We’re about to release the accompanying music video for ‘Test Tube’ and go on another production writing camp for new music to be released in 2026.

Next year you can expect further expansion of the BLUMITSU universe via collaborations with other artists, live shows and world touring. We’ll be continuing our Immersive Experiments on a bigger scale and making more films.

We’re just getting started.

Finally, what can you tell us about your mix?

The mix represents our sound through a combination of our own tracks, music from our extended BLUMITSU family and producers from around the world that we support.

It gradually gets more intense sonically as the mix progresses, and you can find forthcoming tracks inside as well as some of our recent releases. This mix is where we’re at currently as BLUMITSU and what we’d play in the club at peak-time with our signature vocal tools echoing throughout the hour.

*‘Test Tube’ is out now, get it *here

*Tibor Heskett is Head of Content at Rinse FM and a freelance writer, follow him on *Instagram

Tracklist: BLUMITSU - ??? Dubfire - The Bell Tolls Hugo Massien - Disco Regulator TEXT - Moray Peverelist - Pulse XIII BLUMITSU - Test Tube Hood - Synchronus Commutator Lost Trax - And/Or Manao - Xttack BLUMITSU - ??? BLUMITSU - Pinahoelada (Skepta Hit the Target Edit) Saligo - Bassline Freakin’ Case - ??? Madi - Driven to Extremes CYRK - ??? (Client_03 Remix) BLUMITSU - Thermokline Morgan Elder - ??? Surusinghe - Wolfgang (WOST Remix) djfix & Jek - Planatek (Blu:sh 6am Refix) BLUMITSU - Metamorphic