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KELVO slim can, Yuzu Frost

Sparkling water cold-brewed for 18 hours, with magnesium and electrolytes. Zero sugar. Nothing to hide.

Join the drop

Yuzu Frost

Three flavours. One temperature.

Yuzu Frost

Bright yuzu peel, white grapefruit and a dry, bitter edge. The one for early starts.

Brewed with yuzu peel, white grapefruit zest, Atlantic sea salt

Five things.
Nothing else.

  • 120 mg

    Magnesium

    Bisglycinate, the gentle form. Supports normal muscle function.

  • 180 mg

    Sodium

    From Atlantic sea salt. Puts back what a hard hour takes out.

  • 95 mg

    Potassium

    Keeps the electrolyte balance honest.

  • 18 h

    Cold brew

    Botanicals steeped at 4 °C, so flavour stays bright, never stewed.

  • 0 g

    Sugar

    No sweeteners either. The fruit does the talking, quietly.

Carbonated water, cold-brewed botanicals, magnesium bisglycinate, sea salt, potassium citrate, natural flavour. Per 330 ml can: 5 kcal.

Small can.
Serious spec.

Athlete lacing running shoes on a cold grey street
Built for the cold part of the day.

330ml

Slim aluminium, 58 mm wide. Fits a jersey pocket.

277K

That is 4 °C, the temperature we brew at. Heat flattens citrus, so we skip it.

0 g

Sugar. And just 5 kcal a can, so it earns its place mid-session.

3.2vol

Fine carbonation. Smaller bubbles sit softer on a working stomach.

100%

Recyclable aluminium, endlessly. Printed straight on the can, no plastic sleeve.

20,000

Cans in the first drop. When they are gone, the next batch is brewed, not rushed.

Out where
it's cold.

Tested on early starts, long climbs and lakes that should probably be closed.

Three climbers crossing a blue glacier
Glacier approach, 268 K
Two cyclists riding a coastal road on a grey day
Coast road, 279 K
Frost crystals spreading across a window
Window, 263 K
Skier carving a turn on fresh corduroy
First lift, 266 K
Hiker in a red jacket facing a snowy peak
Summit push, 261 K
Mountain range at dusk in teal light
Back down, 270 K

From the
test batch.

1 / 4
“I stopped carrying two bottles. One can at the turnaround and the legs stay quiet on the way back.”
Ingrid AasenTrail runner, 274 K at the start line
“Tastes like it was poured from a glacier, not a lab. The currant one is a problem. I keep finishing it.”
Marco BelliniSki mountaineer, 262 K on the ridge
“My swimmers get out of a 9-degree lake and actually want a drink. That never happened with the sweet stuff.”
Saoirse KelleherOpen-water coach, 282 K in the lake
“Zero sugar and it still has a point of view. Slim can goes in the jersey and I forget it is there.”
Tomas NovakGravel racer, 277 K before dawn

Before
you ask.

January 2027. Everyone on the list gets 48 hours of early access before the shop opens to the public.

The first batch ships across the EU, the UK and Norway. Tell us where you are when you join and we will prioritise the next routes.

No. KELVO is built for during and after, including the late sessions. Drink it at 6 am or 10 pm.

Heat cooks citrus oils and mint. Steeping at 4 °C for 18 hours keeps flavour sharp without adding sugar to prop it up.

A 12-can box will be 29 EUR. The list gets the launch price of 24 EUR on the first box.

Join the drop.

First batch: 20,000 cans in January. The list gets in 48 hours early, at the launch price.

Flavour you want first