Most second ferment combinations are easy to explain. Ginger and lemon — sharp and bright. Blueberry and lavender — floral and purple. Mango and chilli — sweet heat.

Nectarine and vanilla is harder to describe until you’ve tried it. The nectarine gives you a ripe, golden sweetness with a slight tartness from the skin. The vanilla adds warmth and depth that makes the whole thing taste more complex than the ingredients suggest. Together they produce something that smells like late summer and tastes genuinely elegant.

This is one of those combinations that surprises people. It doesn’t sound obvious — and then it is.

What You Need

Whole Nectarine and vanilla powder on kitchen counter for kombucha second fermentation recipe

Per 500ml bottle:

500ml finished first ferment kombucha
1 medium ripe nectarine, stone removed and sliced
¼ teaspoon pure vanilla powder (or ½ teaspoon pure vanilla extract)
1 flip-top bottle with intact gasket

On the nectarine: Ripe is everything here. A nectarine that gives slightly when pressed and smells sweet and fragrant will produce a completely different result from an underripe one. Unlike peaches, nectarines don’t need peeling — the skin contributes a subtle tartness and a slightly deeper colour that adds to the complexity of the finished kombucha.

On the vanilla: Use pure vanilla powder — ground dried vanilla beans with nothing else added. Check the label and make sure the only ingredient listed is vanilla. Some vanilla powders contain glucose, dextrose or artificial flavouring, which you don’t want in fermentation. If you can only find these, use pure vanilla extract instead. Avoid vanilla essence — it’s synthetic, and the flavour doesn’t hold well during fermentation.

How to Make Nectarine Vanilla Kombucha

Step 1 — Harvest your first ferment

Remove the SCOBY and set aside with 200ml of kombucha as starter liquid for your next batch. Taste the remaining kombucha — it should be pleasantly tangy with a slight residual sweetness.

Step 2 — Prepare the nectarine

Fresh nectarine cut into pieces in a bowl and vanilla powder

Remove the stone and slice the nectarine into small pieces. Leave the skin on. Smaller pieces give more surface area in contact with the kombucha, which means better flavour extraction and a more pronounced nectarine character in the finished drink.

Step 3 — Add vanilla first

Vanilla Powder on a tea spoon to fill into the bottle

Add the vanilla powder or extract to the bottle before anything else. This prevents it from clumping on top of the fruit. Give the empty bottle a very gentle swirl after adding the vanilla to help it settle evenly.

Step 4 — Add the nectarine

Nectarine and vanilla powder filled into flip top bottle

Add the sliced nectarine on top of the vanilla.

Step 5 — Fill with kombucha

Pour your finished kombucha into the bottle, leaving 2–3cm of headspace at the top. The liquid will take on a warm golden tinge almost immediately as the nectarine begins releasing its juice.

Step 6 — Seal and store

Seal firmly and store somewhere warm between 21°C and 27°C. Nectarine is high in natural sugar