Second fermentation is an additional fermentation step to add excitement to your brew. Sugars are converted to acids, trace levels of alcohol and carbon dioxide gas which generates a huge amount of pressure, that's enough to cause cheap, low quality bottles to explode. This is why we launched these high quality bottles.

You can experiment with a range of different juices, whole fruit pieces, honey, herbs, spices and superfoods to create an endless range of different flavour and nutritional combinations. The fermentation helps to unlock nutritional compounds in your foods, making them more bioavailable but most appealing is it creates the most delicious probiotic fizzy drinks and milk kefir, low in sugar and much more economical and probiotic rich than store bought products.

How to Second Ferment Kombucha or Water Kefir?

1) Once you've fermented your milk kefir, kombucha or water kefir, mix in a jug, 1 part fruit juice with 9 parts Kombucha/ Water Kefir + any spices and superfood like turmeric, acai, spirulina, maca, matcha etc + any herbs like mint, basil etc

There are lots of recipes ideas in our free NourishmeOrganics VIP Group here

2) Pour Mixture into Second Ferment Bottle, leaving 3 to 5 cm headspace and cap tightly.

3) Leave at room temperature for 2 to 7 days depending on the weather at the time i.e a warmer temperature will result in a faster second ferment ( the longer you leave the less sugar will be left but your brew will be more sour and potentially higher in alcohol**). We recommend tasting your brew daily to establish the taste that you like, and at this point you can end the ferment. Tasting is a good way to remind you to open and release any excess pressure in the bottle.

4) Transfer brew to a refrigerator to chill.

5) Open and Serve*

How to Second Ferment Milk Kefir?

1) Once you've fermented your milk kefir, mix in a jug, milk kefir + honey + fruit pieces + any spices and superfood like turmeric, acai, spirulina, maca, matcha, chia seeds etc + any herbs like mint, basil, nuts etc. We recommend starting with a small piece of lemon or orange peel or a couple of fresh berries. You can even make a savoury version using garlic, pepper and herbs. The flavour combinations are endless. So have a play.

There are lots of recipes ideas in our free NourishmeOrganics VIP Group here

2) Pour Mixture into Second Ferment Bottle and cap tightly.

3) Leave at room temperature for 1 to 4 hours.

4) Transfer brew to a refrigerator to chill.

5) Open and Serve*

*Caution: Water kefir and Kombucha Second Ferments may become very fizzy so be careful when opening lid after fermentation

**Advisory Statement

All fermented foods may contain trace amounts of alcohol. If fermented foods are being prepared for children, breastfeeding mothers, or pregnant women please seek medical advice from a trained medical practitioner before consuming these products.

To keep alcohol as low as possible, make sure that:

- first ferment was conducted with lid slightly open

- the first ferment is sour to taste

- use no more than 25ml fruit juice per 250 ml

- second ferment for 48 hours max, chill and consume within 24 hours ( you will not get as much fizz but alcohol will be as low as possible)

Let customers speak for us

from 8030 reviews

Very quick delivery, clear instruction, excellent result

The delivery was very quick and reliable. It comes with a very clear instruction on how to make the yoghurt and how it is different from usual culture. I made a batch right away, the taste is a bit tangy but I get used to it after a few try. I made it into my favourite breakfast: yoghurt + chia seeds + 1 tsp raw organic honey + frozen berries. Taste superb! And feels good in my tummy. Love it!

Erika M.

01/06/2026

L reuteri LR08 Starter Culture 3 X 1g

Excellent

Easy to use and makes great yoghurt!

Tony D.

01/05/2026

Reuter-i Pro Yoghurt Maker | 2L Glass Container| Reuteri Yoghurt

They’ve done it again

I absolutely love all my kefirko products so far and this is no exception. I cannot wait to make sauerkraut and try my hand at kimchi as well

01/05/2026

Kefirko Veggie Fermenter

Kombucha

I love my Kefirko kombucha maker,Using the fermentation clock makes it even easier ,not having to write down when you started your new batch. I would like to say,l did find it a little confusing as there were 2 lots of instructions (kefirko booklet & Noutishme Organics leaflet) with the sugar amounts. So went with booklet instructions. I laminated the leaflets straight away,so l can refer to them ongoing & wipe them clean. But over all very happy,trying new flavours for the double ferment. Thankyou.

Julie M.

01/04/2026

ULTIMATE KEFIRKO KOMBUCHA FERMENTING KIT- 4L

Cinnamon, Organic, Ceylon or 'true' cinnamon

As good as it gets
Good pricing too!
Purchased 600g, very happy!!

David M.

01/04/2026

Organic Cinnamon Powder - 100gm - (Ground)

Locked in

I like to give my water kifer a second fermentation so tight lids are essential. Lids tend to stretch over a length of time. My first set have lasted for 3yrs. Good innings 👏

Maree B.

01/03/2026

Lids ( x2) for High Pressure Clear Glass Second Fermentation Bottles (330ml)

Healthy Gut

Have been making Water Kefir with Nourish Me Organics Water Kefir Grains for approximately 3yrs. My husband and I have half a cup in the morning 1st up. I suffer from Primary Progressive MS and it is important to help my gut health and helps my immune system. This is an excellent way to place probiotics into your body.

Maree B.

01/02/2026

Raw Organic Vegan Water Kefir Grains 15g + Recipe E-Book

Aussie Made!

This jar is a great addition to my brewing and fermenting kit, it works and looks fantastic and I love that it is made in Australia.

Glenn L.

12/31/2025

Nourishme Organics Kombucha Jar

Great purchase!

We use the yoghurt maker for Lreuteri only at present but it could not be simpler and easy to operate. We'll worth the price.

Harry T.

12/31/2025

Reuter-i Pro Yoghurt Maker | 2L Glass Container| Reuteri Yoghurt

Handy back up

I ordered the second jar so I didn’t have to wait for the first batch to cool and set, then get decanted into another container before beginning another ferment.
It’s a pleasing shape and narrower than some other brands which helps with fridge space.

Tiny D.

12/30/2025

Reuter-i Pro 2L Glass Container

Milk Keffir Grains

In our Perth summer it brewed really quickly, to quickly really. But I persevered and it is perfect now

Mark H.

12/30/2025

Organic Milk Kefir Grains 5g + Recipe E-Book

Great for arthritic pain

Affordable and natural way to diminish arthritic pain, hair loss and brittle nails.
Take a tablespoon at night and morning in a glass of water.

Pen S.

12/29/2025

Organic Food Grade Diatomaceous Earth 200g

Worth the purchase

Shayden S.

12/28/2025

Organic Food Grade Diatomaceous Earth 200g

Great little yogurt maker

I really like this machine. I bought a spare glass jar so I could store one batch whist making another.
I use masking tape to label the contents,

Easy to clean and looks nice on kitchen bench. Quiet operation and end beep volume.
Particularly good for ruteri, I use it also for subtilis and gasseri . It would be good to have included a booklet on the finer points like steps for fermenting sauerkraut too but google is your friend when in doubt.
I recommend this one yogurt maker.

Tiny D.

12/25/2025

Reuter-i Pro Yoghurt Maker | 2L Glass Container| Reuteri Yoghurt

Great kefir

I have been drinking the milk kefir for a couple of weeks now and i feel energised and good from using it.

Denise D.

12/24/2025

Organic Milk Kefir Grains 5g + Recipe E-Book

Second Fermentation Bottles and Accessories

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What is Second Fermentation?

How to Second Ferment Kombucha or Water Kefir?

Let customers speak for us

Second Fermentation Bottles and Accessories

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Price filter

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What is Second Fermentation?

How to Second Ferment Kombucha or Water Kefir?

Let customers speak for us