How to Make Roselle Hibiscus Soda: A Sweet Fermented Drink
If you’ve ever enjoyed a chilled glass of agua de jamaica (hibiscus tea), you’re going to love this fizzy twist — Roselle Hibiscus Soda. This homemade soda is naturally fermented, full of probiotics, and has a tart, floral flavor that strikes the perfect balance between tangy and sweet.
Equipment
- large pot
- mesh strainer
- bottle funnel
- flip top bottles
- Berkey water filter
Ingredients
- 9 cups filtered water avoid tap water — chlorine will interfere with the fermentation process. I use a Berkey filter for this.
- 15-20 Roselle hibiscus calyxes or ¼ cup dried hibiscus flowers
- 1 cup sugar use real sugar — the beneficial bacteria need it as fuel. Don’t substitute with honey or stevia.
- 1-2 tablespoons fresh lemon juice avoid bottled juice; preservatives can hinder fermentation
- ½ cup ginger bug liquid your starter culture — similar to a sourdough starter for drinks. See my post on how to make a ginger bug.
Instructions
Step 1: Prepare the Hibiscus
- Peel the outer petals of the Roselle hibiscus calyxes and discard the seed pods. The pods have tiny hairs that can irritate the skin, so gloves are recommended. Rinse the petals thoroughly in cool filtered water or bottled water to remove any dirt.
Step 2: Make the Tea Base
- In a large pot, combine the 9 cups of water, 1 cup of sugar, and the hibiscus petals. (If you are using dried hibiscus, begin with this step.) Bring to a gentle boil, stirring until the sugar dissolves completely. Add the lemon juice, then remove from heat. Cover and let steep for one hour.
- Taste the liquid to see if it is too tart, too sweet, or too watery. Add more sugar, more filtered water, or more steeping time to correct the flavor if needed. At this stage, you’ve made a rich hibiscus tea — also known as agua de jamaica. If you’d rather enjoy it hot, simply pour yourself a cup and sip it as a hot tea full of vitamin C. Otherwise, move on to fermentation.
Step 3: Cool and Strain
- Strain the tea into a large bowl or pitcher. Allow it to cool below 80°F — higher temperatures could harm your ginger bug or starter culture.
Step 4: Add the Ginger Bug
- Once cooled, stir in your ½ cup of ginger bug liquid. This living starter will kick off the fermentation process. You can read more about ginger bug tips here, including how to maintain a healthy one.
Step 5: Bottle and Ferment
- Using a funnel, pour the liquid into clean flip-top bottles. Seal tightly. Store the bottles in a dark place at room temperature for 2–3 days. During this time, the natural yeast and bacteria will consume the sugar, creating bubbles and transforming your hibiscus tea into fizzy soda.
- To stay on the safe side, check your bottles daily by gently opening one over the sink. If you hear a light fizz, the carbonation is building nicely.
Step 6: Taste Test and Chill
- After 2–3 days, open a bottle carefully and taste. If it’s lightly bubbly and pleasantly tart, your hibiscus soda is ready! If it’s not quite fizzy enough, let it ferment another day. If it tastes very sour, you may have over-fermented it.
- Once you’re happy with the flavor, refrigerate your bottles. Chilling slows the fermentation and prevents over-carbonation.