CO2 Cylinders

Never run out of sparkling water with the Aarke CO2 Cylinder Exchange. Our convenient, on-demand service lets you exchange your empty cylinders for fresh ones. No fixed schedule – exchange only when you need to. All cylinders are filled with 100% renewable, food-grade CO2 produced in the US.

Get Started with Cylinder Exchange
3 Aarke CO2 Cylinders and 1 Exchange Box.
Two Aarke CO2 Cylinders with an Exchange Box for the Aarke Cylinder Loop.
One Aarke CO2 Cylinders with an Exchange Box for the Aarke Cylinder Loop.
Exchange Box for the Aarke Cylinder Loop.
3 Aarke CO2 Cylinders and 1 Exchange Box.
CO2 Cylinder Exchange CO2 Cylinder Exchange
100% Renewable, high-quality food-grade CO2
Regular price
$90 $90

100% Renewable CO2

Aarke CO2 is produced exclusively from renewable resources in the US. This means that the gas comes from sources already in the ecosystem. We’re not adding any unnecessary CO2 to the atmosphere.

Aarke Carbonator 3 in Matte black with aarke co2 cylinder.
Aarke Carbonator 3 in Matte black with aarke co2 cylinder.

Renewable CO2 Ecosystem

Illustration of Aarke's Renewable CO2 Ecosystem showing the sustainable carbonation cycle, from crops absorbing CO2 to fermentation, CO2 capture, home carbonation with biogenic gas, and sparkling water consumption.
Illustration of Aarke's Renewable CO2 Ecosystem showing the sustainable carbonation cycle, from crops absorbing CO2 to fermentation, CO2 capture, home carbonation with biogenic gas, and sparkling water consumption.

1. CO₂ in the atmosphere

2. Natural crops

Fields of crops such as wheat or corn, absorb the CO₂.

3. Harvesting

Farmers harvest the crops.

4. Fermentation

The harvest is processed and releases CO₂.

5. Capturing CO₂

The CO₂ is captured as a by-product from the fermentation.

6. Renewable CO₂

The biogenic CO₂ is turned into fresh, tasteless gas for carbonation.

7. Drinking sparkling water

The CO₂ is released when the sparkling water is consumed.

8. The Renewable CO₂ Ecosystem starts over