How Long Does a CO2 Cylinder Last?
One of the most common questions we get at Fizzit is: how long will my CO2 cylinder actually last? The honest answer depends on a few factors — but we'll break it down so you know exactly what to expect.
The Short Answer
A standard Fizzit CO2 cylinder typically makes 60 liters of sparkling water. For most households that's anywhere from 4 to 8 weeks of daily use, depending on how much sparkling water you drink and how heavily you carbonate.
What Affects How Long a CO2 Cylinder Lasts?
1. Carbonation Level
The more carbonation you add per bottle, the faster your cylinder depletes. If you prefer lightly sparkling water, your cylinder will last significantly longer than if you like it intensely fizzy. Experimenting with a single press versus multiple presses can stretch your cylinder further.
2. How Much You Drink
A household that makes one 1-liter bottle per day will go through a cylinder much faster than one that makes a bottle every few days. As a rough guide:
- Light use (1 bottle every 2–3 days): up to 3 months
- Moderate use (1 bottle per day): 6–8 weeks
- Heavy use (2+ bottles per day): 3–4 weeks
3. Bottle Size
Carbonating a larger bottle uses more CO2 per session. If you're using a 1-liter bottle versus a 0.5-liter bottle, you'll go through CO2 roughly twice as fast per carbonation session.
4. Temperature of the Water
Cold water absorbs CO2 more efficiently than warm water. Always start with chilled water straight from the fridge — you'll get better carbonation with less CO2, making your cylinder last longer.
How Do I Know When My Cylinder Is Running Low?
You'll notice the bubbles becoming less intense even after multiple presses. That's your signal that it's time to swap or refill. Don't wait until it's completely empty — order a replacement in advance so you're never without sparkling water.
What Do I Do When It Runs Out?
With Fizzit's CO2 exchange program, you simply swap your empty cylinder for a full one. It's fast, affordable, and environmentally responsible — empty cylinders are refilled and reused rather than thrown away. You can also set up a Subscribe & Save plan so a fresh cylinder arrives automatically before you run out.
Tips to Make Your CO2 Cylinder Last Longer
- Always use cold, refrigerated water
- Start with one press and add more only if needed
- Make sure the bottle is properly sealed before carbonating
- Store your cylinder upright at room temperature
Want to make sure you never run out? Set up a CO2 subscription with Fizzit and get automatic refills delivered to your door.