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 8167 reviews

Made a great yogurt

I used coconut cream, fermented for 36 hours at 43deg. The yoghurt was creamy and thick. I use Kuzu to thicken my yoghurt when I heat the coconut cream

07/06/2026

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A gutful

After a bad, months long patch with IBS, I got onto this product. Within a week or two my bloating and pain decreased noticeably. Currently onto my second box. Worth every dollar!

Jules D.

07/06/2026

VSL#3 Sachets 30 x 4.4g 132g - WE RECOMMEND TO SELECT EXPRESS POST FOR THIS ITEM

Pure Allulose

Thank you for your Pure Allulose which I have been using for all our cooking & baking needs, it's so wonderful to have such a product capable of all it's sweetness & usage, we don't miss the normal sugars anymore.

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07/04/2026

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Love this product. The jar lasts me 7 days and easy to make in your yoghurt maker. I can add fruit and I know nothing else is added
Other than culture. Also so good not to use those store bought yoghurt
In plastic tubs. Definitely recommend. Thankyou for a great product

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07/03/2026

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Product as described with quick delivery

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

Product as described with quick delivery

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07/02/2026

Organic Milk Kefir Grains 5g + Recipe E-Book

Product as described, quickly delivery

Jennie

07/02/2026

Milk Kefir Growth Premix 100g

Timely delivery and replaced busted packaging immediately. Excellent service and product. Highly recommend.

C.S.

07/01/2026

Raw Organic Vegan Kombucha Scoby + Instruction E-Card

Great Kit

This is a great little kit that has everything you need to start on a kefir journey. The funky lid is so much better than cheesecloth which I used previously.
The kit arrived quickly, was well packed with easy to read instructions. If you are new to kefir, this is an easy way to start the journey.

Kerill

06/30/2026

Large Kefirko Kefir Maker Mega Kit (Kefir Maker + Packet of Fresh Kefir Grains + Premix)

Kefir combination

I’ve been doing kefir for years but it’s a bit of a mess with strainer and such. When I saw the Kefirko kit I thought it looked great and to justify the cost I decided it could be an early birthday present! Yippee! I am loving the neat way it’s made to save fiddling around so much. It’s a good size for the 2 of us for breakfast and afternoon smoothies. I’ve got cheese on the go too and whey for fermenting veges. Very pleased. Thank you

Marilyn T.

06/25/2026

Kefirko Kefir Maker - Home Made Probiotics

GOOD

I like them.. I dont eat meat so was always lacking energy and taking iron tablets.. Feel so much better since commencing..The tablets are easy to swallow.. I will repurchase..

Kym. H.

06/24/2026

Nxgen Organic Beef Liver - 180 Capsules

Love my Keizer making having exactly the right container and utensils makes it easy

Traceyylivingston@gmail.com

06/24/2026

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highly recommended

if you have abdomen issues, highly recommended.
great service nourishme, very happy with the express delivery.

Suzana K.

06/23/2026

VSL#3 Sachets 30 x 4.4g 132g - WE RECOMMEND TO SELECT EXPRESS POST FOR THIS ITEM

Second Fermentation Bottles and Accessories

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What is Second Fermentation?

How to Second Ferment Kombucha or Water Kefir?

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Second Fermentation Bottles and Accessories

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What is Second Fermentation?

How to Second Ferment Kombucha or Water Kefir?

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