
Kombucha is a fermented tea beverage made by combining yeast, bacteria, and tea to create a drink rich in probiotics and antioxidants. The process involves brewing sweetened tea, adding a SCOBY (a symbiotic culture of bacteria and yeast) and allowing it to ferment. The SCOBY is the living home for the bacteria and yeast, which transform the tea into fizzy kombucha. In this guide, we will walk you through the simple process of making your own kombucha tea at home, including tips on ingredients, fermentation, and flavouring.
| Characteristics | Values |
|---|---|
| Ingredients | Water, tea (black or green), sugar, SCOBY or kombucha starter |
| Equipment | Kettle or pot, kombucha jar or non-metal container, cloth, elastic band, airtight bottles |
| Process | Boil water, add tea, steep, add sugar, cool, add SCOBY, ferment, add flavourings (optional), bottle |
| Time | Fermentation: 7-10 days or longer; Second fermentation: a few days |
| Taste | Pleasantly sour and slightly sweet |
| SCOBY | Symbiotic culture of bacteria and yeast; can be bought or made at home |
| Notes | Cleanliness is important; avoid mould; keep SCOBY healthy; avoid metal |
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What You'll Learn

The fermentation process
To begin fermentation, prepare a sweet tea mixture by adding tea bags and sugar to a glass jar, then pouring in boiling water. Allow the tea to steep for 5-15 minutes, then remove the tea bags. Cool the sweetened tea to room temperature. It is important to note that temperature affects the fermentation process, with warmer temperatures expediting fermentation and colder temperatures slowing it down.
The next step is to add the SCOBY. You can obtain a SCOBY from a friend, buy one online, or make your own. To make your own, brew and ferment sweet black tea until a SCOBY forms. Place the SCOBY in the sweetened tea mixture, along with the starter liquid that comes with the SCOBY. Cover the jar with a cloth to keep insects out and secure it with an elastic band.
The tea will now undergo fermentation. This process can take anywhere from 7 to 10 days, or even up to a few weeks, depending on your desired taste. During fermentation, the SCOBY feeds on the sugar in the tea, producing carbon dioxide and transforming the tea into kombucha. The longer the fermentation process, the more sugar is fermented, resulting in a less sweet and more sour taste.
After a few days, you can taste the kombucha to check if it has reached your desired level of sweetness and sourness. If you are satisfied with the taste, you can remove the SCOBY and use it to start a new batch of kombucha. If you plan to flavour your kombucha, this is typically done during a second fermentation phase, where you add your chosen ingredients and allow the kombucha to absorb and intensify the flavours.
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SCOBY and its role
Kombucha is a fermented tea beverage made by fermenting sweetened tea with a symbiotic culture of bacteria and yeast, commonly known as SCOBY. SCOBY is an acronym for symbiotic culture of bacteria and yeast. It is the living home for all the good bacteria and yeast that transform the tea into fizzy kombucha.
The SCOBY is "alive" and needs to be kept healthy by pouring some kombucha tea into its container, along with starter tea for the next batch. The SCOBY feeds on the sugar in the tea, which is used to create another SCOBY. This process results in a kombucha tea with very little sugar. The SCOBY also provides bacteria and yeast to ferment the sweet tea, protects the tea from outside contaminants, and helps retain carbonation.
To make a SCOBY, brew sweet black tea, let it cool, and then mix in raw kombucha. Cover and ferment at room temperature for 1 to 4 weeks until a 1/4-inch SCOBY forms. You can also obtain a SCOBY from a friend, buy one online, or use a store-bought SCOBY from a kit.
It is important to note that the SCOBY does not like metal, and decaf tea will hinder its growth. Additionally, if mould is present on the SCOBY or in the tea, the entire batch of kombucha should be discarded, and a new SCOBY and starter tea should be used.
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Flavouring your kombucha
Fruits and berries
Fruits and berries are commonly used to flavour kombucha and can be added directly to the brew or pureed and strained before adding. Popular choices include strawberries, raspberries, blueberries, and citrus fruits like lemons, limes, and oranges. When using fruits and berries, wash them thoroughly and remove any seeds or pits before adding them to your kombucha. Chop or mash the fruit to release the juices and enhance the flavour. You can also experiment with different combinations of fruits to create unique flavour profiles.
Herbs and spices
Herbs and spices offer a wide range of flavour options for your kombucha. Fresh herbs like mint, ginger, rosemary, thyme, and basil can be added directly to the brew or infused as a simple syrup. For a spicier kick, try adding cinnamon, cloves, cardamom, or chilli peppers. When using spices, start with a small amount and adjust to your taste preferences. You can also create complex flavour profiles by combining different herbs and spices.
Floral and botanical ingredients
For a more unique and delicate flavour, consider using floral and botanical ingredients. Edible flowers such as lavender, hibiscus, and rose can be added directly to your kombucha or used to make a flavoured simple syrup. Other botanical ingredients like chamomile, eucalyptus, and lemongrass can also be infused for a refreshing and aromatic drink. When using floral and botanical ingredients, a little goes a long way, so start with a small amount and adjust to your taste.
Juices and flavour extracts
Using fruit juices or flavour extracts is another easy way to flavour your kombucha. Simply add a small amount of juice or extract to your brew, adjusting the amount to your taste preferences. Popular choices include apple juice and grape juice, or pure flavour extracts like vanilla or almond. You can also get creative by using unique juice blends or experimenting with different types of flavour extracts.
Flavouring tips and considerations
When flavouring your kombucha, it's important to consider the amount of sugar and the level of fermentation. Flavouring agents like fruit or juice will add sugar to your kombucha, so you may need to adjust the amount of sugar in your initial brew. Also, be mindful of the fermentation process, as too much sugar can lead to over-carbonation. Always taste your kombucha before bottling and adjust your flavouring techniques as needed. Finally, remember that the flavour will develop further during the bottling and secondary fermentation process, so a subtle flavour is usually best.
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The importance of cleanliness
Kombucha is a fermented tea beverage made by fermenting sweetened tea with a symbiotic culture of bacteria and yeast (SCOBY). The process involves creating the perfect environment for good bacterial growth. However, if bad bacteria are introduced, it can ruin your batch and potentially make you sick.
Therefore, cleanliness is of utmost importance when brewing kombucha. Here are some key points to ensure cleanliness during the kombucha-making process:
Firstly, always start with clean equipment. Wash and rinse your kombucha jar, containers, and any other utensils thoroughly. Ensure that your equipment is free from soap residue and completely dry before use.
Secondly, use filtered or spring water instead of tap water to reduce the risk of contaminants. Avoid boiling water in aluminium pots, as this can introduce unwanted chemicals into your brew.
Thirdly, maintain good hygiene practices during the brewing process. Keep your work area clean and sanitised, and always wash your hands thoroughly before handling any ingredients or equipment.
Additionally, be vigilant for any signs of mould. Mould can occur due to poor hygiene or improper fermentation conditions. If you notice any mould growing on your SCOBY or in the tea, discard the entire batch and start over with a new SCOBY and starter tea.
Lastly, store your kombucha in clean, airtight bottles or containers. Ensure that your storage vessels are free from leaks and have secure lids to prevent contamination and maintain carbonation.
By prioritising cleanliness throughout the kombucha-making process, you can help ensure the safety and quality of your final product.
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Storing your kombucha
Glass bottles are the ideal storage container for kombucha. They are sterile and provide an airtight environment, which is crucial for preventing mould and oxidation. You can reuse bottles from store-bought kombucha or purchase swing-top bottles online or from home-brewing suppliers. Plastic bottles are not recommended as they can be more prone to chemical reactions and may affect the flavour of your kombucha.
When bottling your kombucha, always use new or thoroughly cleaned and sanitised bottles. Wash the bottles in hot, soapy water, and rinse them well. You can sanitise the bottles by filling them with boiling water, or by using a no-rinse sanitiser commonly used for home brewing. Ensure the bottles are completely dry before filling them with kombucha.
Kombucha should be stored in a cool, dark place, away from direct sunlight and heat sources. Sunlight and heat can kill the healthy bacteria in kombucha and affect its flavour. A cupboard or pantry is an ideal storage location. You can also store kombucha in the refrigerator, which will significantly slow down the fermentation process and keep your kombucha fresh for longer.
The storage duration depends on whether you want to continue fermenting your kombucha or enjoy it as-is. If you prefer a less sour taste, store the kombucha at room temperature for 1-3 days after bottling, then transfer it to the refrigerator. For a stronger, more sour flavour, keep it at room temperature for up to a week before refrigerating. Refrigeration will slow down the fermentation process, and your kombucha will stay fresh for several weeks.
Always open your kombucha bottles slowly and carefully, especially if there is significant carbonation. You can release the pressure slowly by opening the bottle over a sink or bowl to avoid spills. If your kombucha has been stored at room temperature for an extended period, it may build up excess pressure, so use caution when opening these bottles.
By following these storage instructions, you can ensure your kombucha stays fresh, safe, and delicious. Proper storage will also help maintain the health benefits associated with this fermented tea, including the live cultures and probiotics that make kombucha so beneficial for gut health. Enjoy your homemade kombucha, and cheers to your health!
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Frequently asked questions
You will need tea ( black tea is recommended for a strong, healthy SCOBY), sugar ( white or raw), water ( filtered or spring water is best), and a SCOBY or kombucha starter.
SCOBY stands for symbiotic culture of bacteria and yeast. It is the living home for the bacteria and yeast that transform the tea into kombucha. You can buy a SCOBY online, get one from a friend, or make your own by brewing and cooling sweet black tea, then mixing in raw kombucha.
The fermentation process can take anywhere from 7 to 10 days to a few weeks. The longer you leave it, the more sour and less sweet the kombucha will become.
If you see mould, discard the entire batch and start a new batch with a fresh SCOBY and starter tea. Mould can occur due to poor hygiene or improper fermentation conditions.











































