Kombucha is a live, lightly effervescent tea, fermented by a Symbiotic Culture of Bacteria and Yeast (SCOBY). The tea ferments as it interacts with sugar, allowing for good bacteria and yeasts to produce beneficial enzymes and acids. As Kombucha derives from fermenting sweet tea, there will be caffeine present within. However, because the natural fermentation process breaks down caffeine and sugars, the amount of caffeine and sugar in the final Kombucha product is significantly reduced.

It is often consumed for its health benefits (containing probiotics, vitamin B and antioxidants) or as a source of energy!  Unlike your regular cup of coffee, the caffeine in Kombucha contains an anxiety reducer called L-Theanine which has a calming effect 30-40 minutes after ingestion.

At Moon Juice Kombucha, we use only premium and fair-trade green and black tea. We also set long brew cycles to ensure that acid interactions are not rushed, and that maximum beneficial enzymes are produced. 


The main compound glycosaminoglycan (GlcUA) in Kombucha modifies toxic metabolites and exogenous chemicals ingested into compounds of better solubility for easier excretion. In other words, you get awesome poop.

Kills bad bacteria

Kombucha is rich in tea polyphenols and acetic acid, which have both been shown to inhibit the growth of undesirable bacteria and yeasts.


Irons set free from tea and the gluconic acid produced from the Kombucha culture increase the blood haemoglobin level, thus increasing oxygen uptake which leads to having more energy.

Probiotics; Mental and physical well-being

Probiotics contained in Kombucha support a healthy gut microbiome that prevent inflammation and strengthen our immunity – physically and mentally. A healthy gut microbiome also improves digestion, helps fend off chronic diseases, allergies and enables your body to function at its peak. It also translates into a healthy brain, helping to regulate mood, alleviate stress, and promote better sleep.

Antioxidants; enhancement of immunity

Kombucha contains antioxidants (like vitamin C, vitamin E, beta-carotene, and other carotenoids) which prevent the oxidation of molecules and thereby prevent harmful free radicals’ formation. These properties enhance the body’s immune system and protect against cell damage and development of inflammatory diseases.

Additional scientific resources to check out: Tea, Kombucha, and health: a review | Kombucha fermentation and its antimicrobial activity | Antioxidants and aging | Current Evidence on Physiological Activity and Expected Health Effects of Kombucha Fermented Beverage

It is packed with refreshing natural fizz and is a pleasantly sparkling and tangy pick-me-up at any time of the day! 🫧 Depending on the flavour profile, it can be either sweet and/or sour at the same time. 

🫐 For fruity: Big Sur (Blueberry Blue Spirulina) & Love Potion (Raspberry Rose)

🍋 For tangy: Moon Fairy (Apricot) & Lemon Blueberry

🌿 For refreshing: Green Goblin (Green Apple Cucumber), Orange Sunshine (Pineapple Orange), Hey Tony! (Strawberry Mint)

⚡︎ For energising + tart: Rocket Fuel (Lemongrass Ginger), Moonpie (Passionfruit)

🌸 For a light and fragrant taste: Earl Grey Lavender

As our juice is raw and unpasteurized, you may find yellow/brown sediments in your bottle. Fear not, they are harmless strands of SCOBY, not Garfield’s fur.

They are living proof that your drink is alive, fresh and natural. Feel free to sift them out, or consume them as they are – they are harmless and taste like jelly!

If you're interested in brewing your own Kombucha, check out our DIY Kombucha kits

On the rocks, at any time of the day 🌅🌄. We like best to consume it on a hot day, after a sweaty workout, or together with meals for a digestive aid. Kombucha is great on its own, and also yes! as a mixer for cocktails! 🍸🍹

If you have gastric problems, it is best to consume it in small amounts after meals as sourness may cause some discomfort. Also, if you are very sensitive to caffeine, we advise that you limit Kombucha consumption in the evening since it does contain small amounts of caffeine.

The only rule is that there are no rules. That said, listen to your body! If you do consume a whole bottle in a day, trust us, you will soon after have the best poop of your life. Tried and tested.

Please keep refrigerated as leaving it out in the open may re-activate fermentation and cause a change in carbonation and taste. It is best consumed within 2 weeks of purchase.

Please Do NOT shake before opening. Your drink is alive and naturally carbonated.

Technically speaking, it doesn’t. Kombucha will continue to ferment slowly in your fridge.  However, as with natural fermentation, the drink will become more sour overtime (think: vinegar!). As such, we recommend consumption within 2 weeks of purchase for the best taste, and only to store Kombucha in the fridge for up to a maximum of 3 months.

Anyone and everyone!

However, if you are advised against caffeine intake by your doctor (i.e. if you are pregnant, or are a breastfeeding mother), please do exercise caution as Kombucha does contain caffeine (albeit in low levels). If you are unsure, do contact your healthcare professional.

Only a very small percentage of people might experience what is known as a ‘Healing Crisis’ or Herxheimer Reaction. It occurs when the body starts a detoxifying process as it is flooded with good bacteria and potent detoxifiers, cleaning out certain pathogenic organisms in the body. This experience is typically temporary and the benefits of consuming Kombucha increases over time!

No. Kombucha needs caffeine and sugar to ferment and ultimately produce those wonderful acids, probiotics and enzymes that makes Kombucha beneficial for our gut. That said, rest assured because most of the sugar and caffeine is consumed in the fermentation process! Thus, any caffeine and sugar you are consuming as and end product is only residual and relatively very little.

As we do not add any sugar after the original ferment, our brews contain approximately 4-6g of sugar, and caffeine levels are approximate to a quarter of a regular cup of tea.

For low-sugar options, try out these flavours!

  • Rocket Fuel (Lemongrass Ginger)
  • Earl Grey Lavender
  • Hey Tony! (Strawberry and Mint)

Like all fermented foods, Kombucha contains a negligible amount of alcohol as a by-product of the natural fermentation process (around 0.5% Alcohol By Volume), which is metabolised as soon as you consume it. This is considered non-alcoholic by Food Safety standards.

For the love of God please do not even think about it.


⏰ For the time being, all orders are delivered only on Mondays and Thursdays.

For any special requests, please leave a comment when checking out and we'll do our best to accommodate them!

🚚 We charge a flat fee of $10 for standard islandwide shipping, but it’s free when you get any of our promo Jellybag bundle deals, or spend a minimum of $59!

Currently we only ship across Singapore!

But if you are somewhere else in the world, do send us an email at and we'll see how we can work our magic 🪄

Sure! Leave a comment when you checkout with "self-collection at store" + the date & time you'd like to pick-up.

*Subject to availability of flavours at the store.

Yes! Return 8 of our glass bottles to get a free drink from us 🫧

Please do leave a comment at checkout to let us know you'll be returning your bottles and we will pack an extra Kombucha for you!

Quite like the milkman style, simply place the empty glass bottles outside your door and we'll pick it up and replace it with your fresh yummy 'booch order.