How to Make Soda Water at Home

Soda water, also known as carbonated water or sparkling water, is a refreshing beverage that has gained significant popularity in recent years. It is essentially water infused with carbon dioxide gas, which creates the characteristic bubbles and fizziness. Soda water can be enjoyed on its own as a refreshing drink or used as a base for various cocktails and mixed drinks. Its effervescent nature and ability to add a touch of sparkle to beverages have made it a favorite among many people seeking a more exciting alternative to plain water.

Making soda water at home using bicarbonate of soda, also known as baking soda, offers several benefits and advantages. In this article, we’ll discuss how to do it: 

What Equipment Do I Need to Make Soda Water at Home?

To make soda water at home with bicarbonate of soda, you will need the following equipment:

image detailing the equipment needed to make soda water
Soda Siphon

A soda siphon is a pressurised container specifically designed for carbonating water. It typically consists of a bottle with a built-in carbonation mechanism, such as a valve or lever. The soda siphon allows you to add carbon dioxide gas to the water and create the desired fizziness.

CO2 Charger

CO2 chargers, also known as carbon dioxide chargers or cartridges, are small containers filled with food-grade carbon dioxide gas. These chargers are used to pressurise the soda siphon and infuse the water with carbonation. They are usually disposable and can be easily found at kitchen supply stores or online.


You will need bottles to store your homemade soda water. Choose bottles that are suitable for carbonated beverages and have airtight seals to retain the carbonation. Glass bottles with swing-top lids or plastic bottles specifically designed for carbonation are good options. Make sure the bottles are clean and sterilised before use.

What Ingredients Do I Need to Make Soda Water at Home? 

The ingredients needed for making soda water with bicarbonate of soda are readily available and simple to obtain. They include:

image detailing the ingredients need to make soda water


Start with clean, cold water. You can use tap water if it is safe and tastes good. Alternatively, you can use filtered water or distilled water based on your preference.

Bicarbonate of Soda (Baking Soda)

This is the key ingredient that adds carbonation to the water. Bicarbonate of soda, commonly known as baking soda, can be found in most grocery stores or supermarkets. Look for food-grade baking soda without any additional ingredients or additives.

Optional Ingredients

Water and bicarbonate of soda are the basic components for creating soda water at home. However, if you wish to add flavors or enhance the taste of your soda water, you can experiment with additional ingredients such as citrus juice, fruit extracts, or herbs. These flavorings can be added during the carbonation process or directly to the prepared soda water before serving.

How to Make Bicarbonate of Soda at Home

Here's a step-by-step process to create soda water using bicarbonate of soda:

Step 1: Gather your equipment and ingredients

You will need:

  • Soda siphon
  • CO2 charger
  • Clean bottles for storing the soda water
  • Cold, filtered water or distilled water
  • Bicarbonate of soda (baking soda)
  • Optional: flavorings like citrus juice or fruit extracts

Step 2: Prepare the soda water mixture

  • Fill the soda siphon with cold water, leaving some space at the top for the carbonation process.
  • Measure the appropriate amount of bicarbonate of soda based on the manufacturer's instructions or your desired level of carbonation. Start with a small amount (e.g., ¼ to ½ teaspoon) for a gentle fizz and adjust to your preference in subsequent attempts.
  • Add the measured bicarbonate of soda to the water in the soda siphon. Avoid overfilling to prevent excessive foaming when carbonating.

Step 3: Dissolve the bicarbonate of soda

  • Securely attach the soda siphon's head or cap, ensuring it is tightly sealed.
  • Gently shake or swirl the soda siphon to help dissolve the bicarbonate of soda evenly in the water.

Step 4: Carbonation process

  • Insert a CO2 charger into the designated slot or attachment point on the soda siphon, following the manufacturer's instructions. Ensure a secure fit.
  • Activate the CO2 charger as directed by the manufacturer. This might involve puncturing or releasing the gas into the soda siphon.
  • Shake the soda siphon gently to distribute the carbon dioxide throughout the water. This helps create carbonation.

Step 5: Finalising the soda water

  • Release any remaining gas by venting the soda siphon carefully. Follow the manufacturer's instructions to safely release the pressure.
  • Open the soda siphon and pour a small amount of the carbonated water into a glass to test the carbonation level. Adjust the carbonation by repeating the process if desired. Remember to release the pressure before opening the soda siphon again.
  • Once satisfied with the carbonation, transfer the remaining carbonated water from the soda siphon into clean, airtight bottles. Leave a little space at the top of each bottle to allow for expansion due to carbonation.

Optional: Flavoring your soda water

If desired, you can add flavorings to your soda water before or after carbonation.

What are the Benefits of Making Soda Water at Home

There are several key benefit to making soda water at home when compared to store bought soda water. These include:

Cost-effectiveness compared to store-bought soda water

Making soda water at home with bicarbonate of soda offers a significant cost advantage compared to purchasing store-bought soda water. While the initial investment in equipment like a soda siphon and CO2 chargers may be required, these are reusable and provide long-term savings.

Store-bought soda water often comes in single-use plastic bottles or cans, which can quickly accumulate expenses, especially for regular consumers. By making your own soda water at home, you can eliminate the need for continuous purchases, ultimately saving money in the long run. Bicarbonate of soda, the main ingredient, is inexpensive and widely available, making homemade soda water a cost-effective choice.

Customisation and control over flavors and carbonation level

One of the biggest advantages of making soda water at home with bicarbonate of soda is the ability to customise and control both the flavors and the carbonation level. When creating your own soda water, you have complete freedom to experiment with different flavors and tailor the drink to your personal taste preferences.

You can add natural fruit extracts, citrus juices, or even herbs to infuse the soda water with exciting flavors. This opens up a world of possibilities for creating unique and refreshing beverages that cater specifically to your liking.

Moreover, you have control over the carbonation level. You can adjust the amount of bicarbonate of soda added to the water to achieve your preferred level of fizziness. This customisation ensures that every glass of soda water you create is perfectly suited to your individual taste.

Environmental advantages (reducing plastic bottle waste)

Opting to make soda water at home with bicarbonate of soda also brings significant environmental advantages, particularly in reducing plastic bottle waste. Store-bought soda water is often packaged in single-use plastic bottles, which contribute to plastic pollution and environmental degradation.

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