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 8176 reviews

Great sunfibre

This is way cheaper than other brands of sunfibre. It doesn’t taste bad, easy to drink in a glass of water. Great and low FODMAP.

Kat I.

07/20/2026

500g - Partially Hydrolysed Guar Gum (PHGG) - Sunfiber (LOW FODMAP)

Garry

Excellent

Garry R.

07/18/2026

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

i'm so excited

I was a bit worried, the grains were in transit one week and then I thought it's too cold for fermentation as it's cold now in the house, at night around 15 degrees. But I went ahead with it, starting with three batches in 125ml of A2 milk. First batch wasn't good, but second was already drinkable. Now I started with 250ml. I'm so excited and can't wait for grains to multiply so I can have more and make cheese.

Eva T.

07/14/2026

Kefirko Complete Kefir Cheese Making Kit

MyReuteri Starter Culture 20 Billion CFU 30 caps

I keep using L Reuteri capsules for more than 2years. I make yogurt and it is fenomenal help with digestion and sleep. No more bloating and good sleep!

Zofia

07/13/2026

MyReuteri Starter Culture 20 Billion CFU per gram 30 caps

Kefir

What a wonderful product and so easy to use, a joy to be able to make your own Kefir as well, the only problem I had was that the Kefirko bottle is too small when we buy a 1 litre of milk so we have to buy a larger 1.3 litre bottel the we don't have to worry about it over flowing during the fermentation process. Other than that it's great not only making your own but also saving money. Thanks a lot, great work. Adrian & Helen

Adrian M.

07/09/2026

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

I bought this as fibre for my cats to help remove creatine build up from kidney issues. Apparently Acacia Fibre works well with cats.

Shizeekwa

07/07/2026

Organic Prebiotic Acacia Fibre (FODMAP FRIENDLY) 200g

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

BiotiQuest Simple Slumber Starter Culture 30 caps

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.

Adrian M.

07/04/2026

Pure Allulose Powder

Pure Probiotic Yoghurt Starter

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

Suzanne M.

07/03/2026

Pure Organic Probiotic Yoghurt Starter Culture — 3 × 1g Sachets

Worked great. Definitely would recommend

Rosemary

07/03/2026

Organic Natto Starter Culture 1g

⭐⭐⭐⭐⭐ Excellent Quality Sprouting Seeds

Excellent quality sprouting seeds with a great germination rate. Fresh, organic, and easy to grow. Looking forward to enjoying the nutritional benefits of home-grown broccoli sprouts. Highly recommended!

Anonymous

07/02/2026