SodaStream Not Carbonating? Easy Fixes to Try
If your SodaStream is not carbonating, check that the CO2 cylinder is installed and not empty, then confirm the bottle is filled and locked in as your model requires. Use cold water and follow the machine’s instructions before trying another fizz cycle.
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If your SodaStream is not carbonating, check the CO2 cylinder fit and type, then make sure the bottle is compatible, filled to its marked line, and secured as your model requires. Use plain water and follow the machine’s instructions.
Start with the cylinder, bottle, and water level. Stop if a part looks damaged, leaks, or will not fit, and do not force it.
Why is my SodaStream not carbonating?
Check the CO2 cylinder and bottle fit first. Your machine model determines how the cylinder and bottle attach, so follow its manual.
SodaStream pink Quick Connect cylinders are compatible with models including TERRA, ART, E-TERRA, E-DUO, ENSO, and GAIA. Confirm your machine uses this cylinder type before installing one.
Use a carbonating bottle approved for your machine. Check its condition, fill only to its marked line, and secure it as the manual shows.
If you're new to the machine, how to use a SodaStream explains the basic steps. For an overview of carbonation, see how a SodaStream works.
What should you check before trying again?
Use plain water and check the bottle connection before another carbonation cycle. Add syrup or other flavor after carbonating the water.
- Stop the current attempt and remove the bottle according to your model's instructions.
- Check the water level against the bottle's fill line.
- Confirm the bottle is the right type for your machine and isn't cracked or damaged.
- Refit it as the manual directs. It should sit securely without being forced.
- Check that the cylinder is compatible and attached as instructed.
- Follow the manual's directions for the carbonation steps.
Don't add water above the fill line to make up for weak fizz. If water sprays, the bottle feels unstable, or gas escapes around a connection, stop and consult SodaStream support.
Could the CO2 cylinder be the problem?
Yes. An empty, incorrectly attached, or incompatible cylinder can leave water flat.
Check its fit and your model's instructions before swapping cylinders.
A cylinder running low may produce less fizz than usual. Install a new compatible cylinder only as instructed, without tools or extra force.
The SodaStream CO2 Refill, 2 Pink Quick Connect includes two 60L pink Quick Connect cylinders. They fit compatible models such as TERRA, ART, E-TERRA, E-DUO, ENSO, and GAIA.
For a cylinder swap walkthrough, see how to change a SodaStream CO2 cylinder. If you're unsure whether yours is near empty, how long a SodaStream CO2 cylinder lasts covers factors that affect its usable life.
Is the bottle fitted or filled incorrectly?
A bottle that isn't secure or is filled past its line can interfere with carbonation. Remove it and refit it as directed, using a bottle approved for your model.
Check the bottle's markings and condition. Don't carbonate in a bottle that isn't made for your machine, and stop using a damaged one.
The SodaStream 1L Classic Bottle, Black Twin Pack includes two 1L bottles for compatible SodaStream machines. They don't fit Aqua Fizz, DUO, or E-DUO models, so check your model first.
Use the machine and bottle instructions together to confirm the bottle is suitable for carbonation.
Can a dirty bottle cause weak fizz?
A dirty bottle is worth cleaning, but cleaning won't fix an empty cylinder or a poor connection. Wash it according to its care instructions and let it dry before use.
Check whether your bottle is dishwasher safe before putting it in the dishwasher. Avoid harsh scrubbing or a brush that could damage its surface.
The Bottle Brush for SodaStream has nylon and cotton-thread bristles and is designed for bottle cleaning. It is also suitable for other drinking bottles.
If the bottle is discolored, damaged, or past its usable life, cleaning may not be enough. Choose a replacement that fits your machine.
What if the SodaStream still won't carbonate?
If a correctly fitted cylinder and bottle still won't carbonate plain water, stop troubleshooting and contact SodaStream support. Check your model's manual and don't take the machine apart.
Stop using the machine if you notice a leak, damage, or an unusual sound. Don't use a cylinder that appears damaged.
The SodaStream Terra Value Bundle includes a TERRA sparkling water maker, Quick Connect cylinders, reusable bottles, and flavor drops. Its Quick Connect system uses compatible pink cylinders.
For model differences, see SodaStream models explained. You can also check the SodaStream support center for instructions for your machine.
How do you fix a SodaStream that is not carbonating?
When a SodaStream is not carbonating, check the cylinder fit and type, confirm the bottle is compatible and secured, and fill it only to its marked line. Follow your machine's manual for carbonation steps.
If one of those checks identifies a problem, correct it and try again as directed. If the machine still won't carbonate, or you see a leak or damaged part, contact SodaStream support.
Frequently asked questions
Why is my SodaStream not carbonating?
A SodaStream may produce little or no fizz if its CO2 cylinder is empty, loose, or incompatible with the machine, or if the bottle isn't fitted correctly. Check the model instructions, cylinder connection, and bottle fill line first.
If those look right, stop and contact SodaStream support.
Should I use cold water in a SodaStream?
Use cold water for carbonation, following your SodaStream model's instructions. Fill the bottle only to its marked line and carbonate water before adding flavor.
Don't try to compensate for weak fizz by overfilling the bottle or forcing a bottle that doesn't lock into place.
Can I carbonate juice in a SodaStream?
SodaStream machines are intended to carbonate water, so carbonate plain water first and add juice or syrup afterward. Carbonating other liquids can cause them to foam or spill, and the right steps can vary by model.
Check your machine's instructions before using flavorings.
How can I tell if a SodaStream CO2 cylinder is empty?
Weak or absent fizz can be a sign that a cylinder is running low, but check that it's installed correctly before replacing it. Follow the instructions for your machine and cylinder type.
If a full, compatible cylinder still doesn't carbonate water, contact SodaStream support.
