
Refilling your SodaStream CO2 cylinders is a straightforward process that can be done at home with a few simple steps. First, locate a certified SodaStream CO2 refiller or exchange center.
To find a certified SodaStream CO2 refiller or exchange center, you can visit the SodaStream website and use their store locator tool. The tool will provide you with a list of authorized retailers in your area.
Make sure to bring your empty CO2 cylinder to the refiller or exchange center, and they will exchange it for a full one. The cost of refilling your cylinder will depend on the location and the type of cylinder you have.
Typically, it costs between $10 to $15 to refill a standard CO2 cylinder.
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Why Refill?
Refilling your SodaStream CO2 canisters is a cost-effective alternative to buying new ones. On average, you can save up to 70% by refilling instead of buying a new canister.
Refilling your SodaStream CO2 canisters is also an environmentally friendly option. Recycling your old canisters and reusing them reduces waste and minimizes the carbon footprint associated with producing new canisters.
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Why Cylinders?
Refilling your SodaStream CO2 cylinders is a no-brainer, but you might be wondering why you should bother with the official cylinders in the first place. The truth is, they're designed specifically for your sparkling water maker, ensuring better carbonation and maximum cylinder efficiency.
Each cylinder is filled with high-quality, dietary-grade CO2, just like the stuff used in all traditional carbonated drinks and sodas.
The Triple Quality Control process ensures that every cylinder is in perfect condition, inspected, sterilized, and filled with fresh CO2 every time you exchange your empty cylinder.
SodaStream's cylinders have an impressive safety record, with over 70 million cylinders produced and not a single failure reported. That's a relief, especially when you consider the cylinders are made of the highest-grade brass and aluminum.
Here are some key benefits of using official SodaStream CO2 cylinders:
- Designed specifically for your sparkling water maker
- Filled with high-quality, dietary-grade CO2
- Perfect condition every time, thanks to the Triple Quality Control process
- Made of the highest-grade brass and aluminum for maximum safety
CO₂ Tank Refill Location
You'll need to find a reliable place to refill your CO₂ tank, and it's not as easy as it sounds. Certain places may require you to use their tanks and offer limited sizes, which can be more costly.
Before purchasing a refill station, make sure you have a suitable location to refill your CO₂ tank. You may need to consider the type of CO₂ they offer, as some places might not have food-grade or beverage-grade CO₂.
Some places may sell exclusively to companies, which can limit your options. You'll want to find a place that can provide the type and size of CO₂ tank you need.
It's essential to research and find a reliable location to refill your CO₂ tank before making the investment. This will save you time and money in the long run.
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Refilling Process
Refilling your SodaStream CO2 is a straightforward process that requires some basic steps. First, place the gasket in the connector of the SodaStream filling adapter and screw it onto the valve of the large CO2 tank until it's snug.
To prepare the SodaStream cylinder, screw it onto the pin knob connector, making sure the pin is unscrewed, and then screw in the pin knob to open up the valve. This will allow you to connect it to the filling adapter.
As you start the flow of CO2, be sure to open the on/off ball valve slowly and gradually, as a sudden increase in pressure can stop the flow of CO2 to the recipient cylinder.
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Step 1

To start the refilling process, place the gasket in the connector of the SodaStream filling adapter.
First, ensure you have the correct adapter, which is available on Amazon. The one we use is linked in the original instructions.
Next, screw the adapter onto the valve of the large CO₂ tank. Use a wrench to tighten the connection until it is snug.
Make sure both adapter valves are in the closed (90°) position before proceeding.
Step 2
To refill your SodaStream, you'll need to attach the SodaStream cylinder to the pin knob connector. Ensure the pin is unscrewed first.
Now, screw in the pin knob to open up the SodaStream cylinder valve. This is a critical step, as it allows the CO₂ to flow into the cylinder.
Make sure the SodaStream cylinder is securely attached to the pin knob connector, as a loose connection can cause issues during the refilling process.
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Tools and Preparation
To refill your SodaStream CO2, you'll need to purchase a new CO2 cartridge, which costs around $15.
SodaStream CO2 cartridges are available in various sizes, including 60L and 130L, and can be purchased online or at a local retailer.
You'll also need to have your SodaStream machine ready for refilling, which includes removing any CO2 cartridges that may still be attached.
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What Can You Refill With

When you're preparing to refill your CO2 canister, it's essential to know what to use. You can refill it with food-grade carbon dioxide (CO2), which is the same type of CO2 used to carbonate beverages like soda and sparkling water.
Food-grade CO2 is safe for consumption and doesn't alter the taste of your water significantly. This type of CO2 is commonly used in the beverage industry and is generally considered harmless.
Here are some benefits of using food-grade CO2:
- Creates Bubbles: CO2 gas dissolves in water, creating the tiny bubbles that give sparkling water its signature fizz.
- Safe for Consumption: Food-grade CO2 is safe to ingest.
- Widely Used: This type of CO2 is commonly used in the beverage industry.
Avoid refilling your gas canister with any other type of gas, as non-food grade CO2 or other gases might contain contaminants or be unfit for human consumption, potentially posing health risks.
Step 3
Now that you've prepared your SodaStream, it's time to open the valve on the large CO₂ tank. This usually involves turning the knob counter-clockwise.
To do this, you'll need to have the RPV valve checked. If your tank has one, you'll need to purchase an adapter to bypass it.
Step 4

Start slowly opening the on/off ball valve to allow CO₂ to flow into the SodaStream cylinder. You don't need to open it fully, just enough to get the flow started.
A sudden increase in pressure will stop the flow of CO₂, so it's essential to increase the pressure gradually.
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Tools and Parts
Having the right tools and parts is crucial for a successful SodaStream refill station.
Make sure you have the correct thread types on all the parts you need for the job. You'll need a full large donor CO₂ cylinder with a US CGA 320 valve or an EU+AU W21.8-14 valve.
It's essential to have the right adapter for your SodaStream cylinder. Choose one with the right threads for both the SodaStream cylinder and the large CO₂ tank, such as a CGA 320 + TR21-4 thread.
Don't forget to get a wrench to tighten the adapter. This will ensure everything is securely in place.
Safety first! Always wear safety glasses and gloves when working with CO₂ to protect yourself from any potential harm.
Additional reading: Sodastream Carbonating Cylinder
Considerations and Issues
Before you start looking for a CO₂ refilling solution, it's essential to consider a few key factors. You'll need to have a place where you can refill the large CO₂ tank, and you'll need to know the thread type of both the large tank valve and your SodaStream CO₂ cylinder.
To ensure easy refilling, look for a large CO₂ tank with a dip tube, especially if you plan to purchase a larger capacity tank (10+ pounds). This will save you from having to turn the tank upside down.
Here are the key questions to consider:
- Do you have a place where you can refill the large CO₂ tank?
- What thread does the large CO₂ tank valve have?
- What thread does your SodaStream CO₂ cylinder have?
- Is there an RPV valve on the CO₂ tank you’re considering?
Key Considerations
Before you start looking for a CO₂ tank, it's essential to consider a few things. Do you have a place where you can refill the large CO₂ tank? This is a crucial factor, as you'll need a secure and stable location to store the tank.
The type of thread on the large CO₂ tank valve is also important. You'll need to match this with the thread on your SodaStream CO₂ cylinder. If you're unsure, it's worth double-checking the specifications.

An RPV valve on the CO₂ tank can be a game-changer. It allows for easier refilling of the SodaStream cylinder without having to turn the large tank upside down.
If you're planning to purchase a larger CO₂ tank (10+ pounds), look for one with a dip tube. This feature makes refilling the SodaStream cylinder a breeze.
Here are the key questions to consider:
- Do you have a place where you can refill the large CO₂ tank?
- What thread does the large CO₂ tank valve have?
- What thread does your SodaStream CO₂ cylinder have?
- Is there an RPV valve on the CO₂ tank you’re considering?
Common Issues in Cylinder Refilling
Cylinder refilling can be a bit of a challenge, and there are several common issues that can arise.
One of the most common issues is incorrect gas mixture, which can lead to reduced performance and lifespan of the cylinder. This can happen when the wrong type of gas is used or when the mixture is not calibrated correctly.
Problems with cylinder valves are another common issue, often caused by wear and tear or improper maintenance. This can result in leaks, reduced pressure, and other safety hazards.
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Inadequate cylinder cleaning is also a common problem, which can lead to contamination and reduced performance. This can be caused by not following proper cleaning procedures or not using the right cleaning agents.
Incorrect cylinder storage can also cause issues, such as damage to the cylinder or its components. This can happen when the cylinder is stored in a way that puts it under stress or exposes it to extreme temperatures.
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Partial and Final
Refilling your SodaStream CO2 cylinder can be a bit tricky, but with the right approach, you can get the job done efficiently. To refill the cylinder completely, it's essential to keep it as cold as possible, ideally in the freezer for at least an hour before starting the filling process.
The filling process itself can take around 1-2 minutes to reach its full capacity. If you want to track the progress, weighing the small cylinder on a food scale during the filling process is highly recommended.
As the large CO2 tank empties, the pressure inside will drop, making filling the smaller bottle increasingly difficult. With a 10 lb tank, you'll have around 2 lb of CO2 left in the bottle, which can still be used to partially fill the smaller cylinder, but it will require repeated refreezing to reduce the internal pressure.
If you have a large CO2 tank without a dip tube, it's best to lay it on its side, such as on a mattress, to allow the liquid CO2 to flow into the recipient cylinder.
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Partial Cylinder Filling
Partial cylinder filling is a common practice when using your SodaStream machine, especially when you're running low on CO₂. To refill the smaller cylinder completely, it's essential to make sure it's as cold as possible, so put it in the freezer for at least an hour before starting the filling process.
This will help the filling process to take approximately 1-2 minutes to reach its full capacity. If you want to track the progress, weighing the small cylinder on a food scale during the filling process is highly recommended.
As the large CO₂ tank empties, the pressure inside will drop, making filling the smaller bottle increasingly difficult. You can still partially fill the smaller cylinder, but it will require repeated refreezing to reduce the internal pressure.
Here's a rough estimate of when to expect this issue: with a 10 lb tank, this is when you have around 2 lb of CO₂ left in the bottle.
If you have a large CO₂ tank without a dip tube, lay it on its side, e.g., on a mattress, to allow the liquid CO₂ to flow into the recipient cylinder.
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Final Thoughts
Refilling your cylinder is a cost-effective option. It's also a more environmentally friendly choice compared to buying new ones.
Refilling a cylinder requires some preparation and safety measures. You should take these precautions seriously to avoid any accidents.
If you're concerned about safety, consider refilling your cylinder with CO2. This can be done with the help of a company like CO2 YOU, which offers convenient refilled canisters delivered directly to your door.
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Frequently Asked Questions
Can you fill your own SodaStream bottles?
Yes, you can refill your SodaStream bottles at home, but you'll need a compatible CO2 regulator to ensure safe and proper refilling.
How do I exchange empty SodaStream cylinders?
Exchange empty SodaStream cylinders at a retail location or online, where you'll pay only for the refill. Use our store locator or online exchange program to find a convenient exchange option.
Can I refill my own CO2 tank?
Refilling your own CO2 tank is not recommended due to safety and consistency concerns. For a safe and reliable carbonation experience, it's best to have your CO2 tank refilled by a professional.
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