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How to Make Watermelon Kombucha
To make watermelon kombucha, you combine fresh watermelon juice with already fermented kombucha and let it undergo a second fermentation.
This gives you a fizzy, fruity drink that tastes like summer in a bottle.
If you’ve been wondering how to make watermelon kombucha at home, the process is actually simpler than you might think.
You don’t need fancy equipment or a degree in food science.
All you need is some basic kombucha, fresh watermelon, and a little patience.
In this post, we’ll walk through how to make watermelon kombucha step by step, including the ingredients you need, the flavoring stage, and tips for getting that perfect fizz.
Let’s dive in.
Why You Should Make Watermelon Kombucha
Learning how to make watermelon kombucha is worth it for so many reasons.
Here’s why this fruity ferment deserves a spot in your fridge.
1. It’s a Refreshing Summer Drink
Watermelon kombucha is incredibly refreshing, especially when served ice cold on a hot day.
The natural sweetness of watermelon blends beautifully with the tangy, slightly sour taste of kombucha.
When you make watermelon kombucha, you get a drink that’s way more interesting than plain water but still light and hydrating.
2. It Adds Probiotics to Your Diet
When you make watermelon kombucha, you’re keeping all the probiotic benefits of the base kombucha intact.
Those beneficial bacteria and yeasts support gut health and digestion.
So you’re not just making a tasty drink, you’re making a functional one too.
3. It’s Cheaper Than Store-Bought
Buying flavored kombucha at the store can get expensive fast.
When you learn how to make watermelon kombucha at home, you spend a fraction of that cost.
A single watermelon can flavor several bottles of kombucha.
That’s a win for your wallet and your taste buds.
4. You Control the Sweetness
When you make watermelon kombucha yourself, you decide how much fruit goes in.
Want it sweeter? Add more watermelon juice.
Prefer it tangy? Use less.
That kind of control is impossible with store-bought bottles.
Ingredients and Supplies for Watermelon Kombucha
Before you make watermelon kombucha, gather everything you need.
Here’s your checklist.
1. Plain Fermented Kombucha
Start with about four cups of unflavored kombucha that has already completed its first fermentation.
This is the base you’ll use to make watermelon kombucha.
Make sure it’s not too sour, or the watermelon flavor will get lost.
2. Fresh Watermelon
You’ll need about two cups of fresh watermelon chunks.
Seedless watermelon works best because it saves you time.
The riper the watermelon, the sweeter your final drink will be.
3. Glass Bottles with Flip-Top Lids
You’ll need airtight glass bottles for the second fermentation.
These bottles trap carbonation, which is what makes watermelon kombucha fizzy.
Avoid plastic bottles since they don’t seal as well.
4. A Blender and a Fine Mesh Strainer
You’ll blend the watermelon and strain the juice.
A fine mesh strainer keeps pulp out of your bottles.
Too much pulp can make your watermelon kombucha slimy.
How to Make Watermelon Kombucha Step by Step
Now let’s get into the actual process of how to make watermelon kombucha.
Follow these steps and you’ll have fizzy, fruity kombucha in just a few days.
1. Prepare the Watermelon Juice
Cut your watermelon into chunks and remove any seeds.
Blend the chunks until smooth.
Then pour the puree through a fine mesh strainer into a bowl.
Press the pulp with a spoon to get every last drop of juice.
2. Mix the Juice with Kombucha
Pour your plain kombucha into a large pitcher.
Add the fresh watermelon juice and stir gently.
Use about half a cup of juice per cup of kombucha.
Adjust based on how sweet you want your watermelon kombucha to be.
3. Bottle Your Watermelon Kombucha
Use a funnel to pour the mixture into your glass bottles.
Leave about an inch of headspace at the top.
This gives the carbonation room to build without overflowing.
Seal the bottles tightly with their flip-top lids.
4. Let It Ferment for 2 to 4 Days
Store the bottles at room temperature, away from direct sunlight.
This second fermentation is where your watermelon kombucha gets its fizz.
Check the bottles after two days by opening one carefully.
If it’s fizzy enough, move all bottles to the fridge.
5. Chill and Enjoy
Once chilled, your watermelon kombucha is ready to drink.
Pour it over ice and garnish with a small watermelon wedge if you’re feeling fancy.
The flavor is best within the first week or two.
Tips for the Best Watermelon Kombucha
A few small tweaks can make a big difference when you make watermelon kombucha.
Keep these tips in mind.
1. Don’t Overdo the Fruit
Too much watermelon juice can make your kombucha overly sweet and prone to exploding bottles.
Stick to the recommended ratios when you make watermelon kombucha.
2. Burp Your Bottles Daily
Open the bottles once a day during the second fermentation to release pressure.
This prevents bottle bombs and helps you track carbonation.
3. Use Ripe but Firm Watermelon
Overripe watermelon can taste fermented already, which throws off the flavor.
Pick one that’s sweet and juicy but still holds its shape.
4. Add Herbs for Extra Flavor
Want to take your watermelon kombucha up a notch?
Add a few fresh mint leaves or a slice of lime to each bottle before sealing.
The flavors infuse during the second fermentation and taste amazing.
So, How Do You Make Watermelon Kombucha?
You make watermelon kombucha by mixing fresh watermelon juice with plain fermented kombucha and letting it carbonate in sealed bottles for a few days.
It’s a simple process that turns basic kombucha into a fizzy, fruity treat you’ll want to make all summer long.
The key is using ripe watermelon, clean bottles, and a little patience during that second fermentation.
Once you know how to make watermelon kombucha, you can experiment with different fruit combinations and sweetness levels.
So grab a watermelon, bottle up some kombucha, and give this recipe a try.
Your taste buds will thank you.