Aarke CO2 Refill Cylinder 2-Pack - Renewable CO2 for Soda Makers

In this review the focus is on whether the Aarke CO2 Refill Cylinder 2-Pack is a practical refill option for home sparkling water makers. The bottom line: this kit is best for owners of Aarke carbonators or other screw-in style soda machines who want an easy, sustainable source of CO2 and a simple exchange program. The reviewer found the cylinders deliver clean, consistent fizz, are straightforward to install, and appeal to users who prioritize sustainably sourced CO2 and minimal fuss when maintaining a soda water setup.

Key Features

• Renewable CO2: The cylinders contain CO2 derived from agricultural biomass, offering carbonation with a lower reliance on fossil feedstocks.
• Food-grade purification: Each tank is purified to meet food-grade standards so the carbonated water tastes clean and safe for regular use.
• Two-pack convenience: You receive two 60L cylinders so there is a spare ready while the other is in use, reducing the chance of running out of fizz.
• Cylinder Loop Exchange: The included exchange program simplifies replenishment by delivering fresh cylinders to your door when needed.
• Wide compatibility: These CO2 tanks are crafted for all Aarke Carbonator models and fit most screw-in style soda makers, supporting straightforward installation.

Who It's For

This product is aimed at home users who already own an Aarke carbonator or a compatible screw-in soda machine and want a carbon dioxide refill option that emphasizes sustainability and ease of replacement. It suits people who appreciate a simple cartridge exchange service to avoid trips to refill centers or confusing adapters.

Those who should look elsewhere include owners of quick-connect pink cap systems that are explicitly incompatible, and people seeking the cheapest possible CO2 option regardless of sourcing. Buyers who need larger commercial cylinders or non-screw-in fittings should consider alternatives.

Pros & Cons

Pros

• Renewable CO2 sourcing provides a more earth-friendly carbonation option for home use.
• Cylinders are purified to food-grade standards, which supports consistent, neutral-tasting fizz.
• The two-pack size and Cylinder Loop exchange make ongoing replenishment convenient and reduce downtime.
• Good compatibility with all Aarke Carbonator models and most screw-in machines simplifies setup.

Cons

• Not compatible with certain quick-connect pink cap systems, so some users will need a different solution.
• Some customers consider the cost higher than the cheapest refill options available.

Specifications

Product	Aarke CO2 Refill Cylinder 2-Pack
Capacity per cylinder	60L of carbonated water
Total estimated output	Up to 120L combined
CO2 source	Renewable agricultural biomass (corn-based bioethanol derived)
Purity	Food-grade purified CO2
Compatibility	All Aarke Carbonator models and most screw-in style soda makers
Included	Two 60L cylinders and instructions for the Cylinder Loop exchange

Our Verdict

For Aarke owners who value sustainability and convenience, this two-pack is a sensible, well-made refill option that keeps a soda water machine ready with minimal effort. The renewable CO2 sourcing and food-grade purification make it a responsible pick, while the Cylinder Loop exchange reduces friction for repeat use. It represents good value for those focused on eco-conscious replenishment, though cost-conscious buyers or owners of incompatible quick-connect systems should compare alternatives.

Frequently Asked Questions

Are these cylinders compatible with non-Aarke machines?
They fit most screw-in style fizzy water makers, but they are not compatible with pink cap quick-connect systems.

How much sparkling water does each cylinder make?
Each cylinder is rated to carbonate about 60L of water, for a combined total near 120L in the two-pack.

What is the Cylinder Loop service?
The Cylinder Loop is an exchange program that delivers fresh cylinders to your door when needed, simplifying replenishment and ensuring you do not run out of CO2.