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    Water Kefir Kit
    Water Kefir Kit

Water Kefir Kit

$65.00

Instead of $77.00

Tax included

Everything you need to start making refreshing, probiotic water kefir at home. This complete kit includes dried water kefir grains, a glass fermentation jar, airlock system, strainer, kefir food, and a detailed guide with instructions and recipes.

Water kefir is the vegan cousin of milk kefir and the caffeine-free alternative to kombucha. These live cultures can be used again and again to create refreshing, naturally fizzy probiotic drinks at home.

Easy to make and endlessly versatile, water kefir is a great way to support gut health while creating delicious homemade sodas, fruit ferments, and flavoured drinks.

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Beautifully versatile, water kefir can be flavoured in endless ways to suit your taste, from fresh and fruity to bold and botanical. It’s a delicious, feel-good alternative to conventional soft drinks, without the high sugar content, artificial colours, flavours, or preservatives.

You’ll learn step-by-step how to make the first fermentation using multiple base recipes, along with helpful tips and guidance for the second fermentation process. The guide also includes instructions for taking a break from brewing and how to safely store your grains.

To inspire your creativity, there’s a dedicated recipe section featuring delicious flavour combinations such as ginger kefir lemonade, elderflower, lemon verbena, coconut variations, and fruit-infused brews. You’ll also find a recovery brew guide for reviving your grains, plus a helpful FAQ section to support you along the way.

Those little microorganisms support your immune system and help to revive and maintain gut health. Fermented foods are also rich in B vitamins, food enzymes and key antioxidants that support healthy cells.


Our Water Kefir Kit contains:
- 1x Water Kefir Guide (A5 format, stapled, and printed in-house)
- 1x glass jar with stainless steel compound lid
- 1x silicone airlock for first ferment
- 1x stainless steel kefir strainer
- 1 pack with 1 Tbsp of dried water kefir grains, which hydrates to 3 Tbsp within 24 hours
- 1x 100g of water kefir complete food
- email support

How does it taste like?

Water kefir has a mildly sweet, slightly tart and refreshing taste similar to a very light, non-alcoholic cider. It is much less acidic and "funky" than kombucha and is naturally caffeine-free. 
The exact flavour profile changes and depends on how you ferment it. Because the plain base (1st fermentation with grains) is relatively neutral, it easily takes on whatever flavors you add to it. Many people bottle the plain kefir with fruit, juice, or herbs (2nd fermentation without the grains) for another 1–2 days. This adds natural fruity flavors and creates a fizzy, soda-like sparkle.


Why choose our grains?

  • Fed exclusively with certified organic ingredients
  • Cultured using filtered spring water
  • Produced and packed in a certified kitchen
  • Grown by experienced kefir brewers with years of hands-on expertise


With proper care, your grains can last indefinitely.


Additional Water Kefir Complete Food can be purchased here.

Customer Reviews

Based on 3 reviews
Write your review !
Mary-Anne on  Nov 19, 2024

Great Tasting

Finally, after my third attempt, I have water Kefir that is nice tasting (Ginger) thanks to your kit and kefir food. Thanks to Korukai keep up the great work, I am checking out the milk kefir/cheese as my next try (I feel like a mad scientist)

Rob on  Feb 26, 2023

Amazing guide

The Water Kefir Guide is amazing. If anyone fails to make good Kefir after reading the guide properly, they are not paying attention. Previously, when here in NZ, I was just given basic instructions about how to make Kefir. No instruction on 2nd fermentation was given, so I’m learning fast & this is going to be good.

Heather on  Feb 21, 2023

These kefir grains are fantastic!

Wow! These kefir grains are fantastic! They really do multiply.In just 5 days they have increased from 3 tablespoons to 8.And the grains are not as small as a previous batch that I bought elsewhere which hardly increased in numbers.The instructions from this seller are superb too.Very helpful and informative.Im very impressed.Thank you Korukai!

You might also like

Water Kefir Complete Food

$6.50

Certified organic water kefir food containing sugar, molasses and micronutrients to feed your water kefir grains optimally. This pack contains the food for water kefir grains only, you need to have your own grains or buy them from us.

This way they stay healthy and produce a better probiotic fizzy drink for you and your family.


Available in 100g, 500g and 1kg bulk pack in a home-compostable, biodegradable pouch.


Containing only certified organic ingredients so that your water kefir grains can thrive (do not come with the grains). Without any roundup or other agricultural chemical residues, which could have a negative effect on the microbes in the water kefir.

16 other products in the same category:

Perpetual Probiotic Yoghurt Culture Shipment...

$19.90
Due to stricter requirements for dairy products we had to stop selling this starter. The hoops we would have to jump through made it nonviable for us to continue.
We have a certified kitchen for our other products, but for dairy we would need a whole different set up.

But here the good news:

We will make a big batch in a certified cheesery once a year so you can stock up when needed. We have it available over the next week. Orders can be made until 3rd May, 8am. We will ship it on the 4th May.

More info and FAQ is below!

Fermentation Pack

$75.90

We have put together this pack for anyone wanting in making delicious ferments at home, but unsure where to start and how to go about it.


The KoruKai Herb Farm "Lacto-Fermentation" eBooklet (table of contents below, comes via email) will guide you along step by step to make your own probiotic lactic-ferments at home. It has recently been updated and contains 7 more recipes.

Additional Fermentation Jars with airlock and weight can be purchased here.

Milk Kefir Kit

$55.90

Billions of probiotics per tablespoon for gut health.

1 portion of active organic milk kefir grains to culture 1 cup of milk in 24 hours, which can increase to 1 litre within 2 weeks.


This kit contains all the basic equipment that you need to make probiotic milk kefir at home. Instructions are sent via email.
An additional glass jar for keeping ready kefir milk in the fridge can be purchased here: 500ml glass jar.

Shipment of fresh milk kefir grains every Monday (or Tuesday if Monday is a public holiday). Orders and payments need to be in by 8pm Sunday to get shipped the following Monday.

Fermenting Airlock

$6.90

Diameter: 8.4cm

This silicone airlock is perfect for keeping lacto-fermented pickles and drinks under an airlock during fermentation. As pressure builds up gas pushes out the top of the spout without letting air in.

They are suited for mason jars and are secured with a stainless steel ring (ring not included). This airlock fits our 1 litre Glass Jar with stainless steel compound lid.

1 airlock WITHOUT ring is $5.90.

For airlocks with ring please see here.

Fermentation Flask / Yoghurt Maker

$69.90

Expected to arrive mid week (11th March). Orders will be dispatched as soon as we receive them. 

This Fermenting Flask from Culture Cupboard is perfect to keep your kefir at a steady temperature without the nightly lows in winter and the mid day highs in summer.

It is also amazing to make your own yoghurt without the need for an electric yoghurt maker.
The flask comes with a glass jar and a recipe book to make your own dairy and dairy-free yoghurts.

Milk Kefir Guide

$9.90

This guide covers all the basics that you need to know to create probiotic, healthy milk kefir using milk kefir grains. We have well over 10 years of experience and know how to get milk kefir grains to thrive so you can also have them for a lifetime.

If purchasing our KoruKai Milk Kefir Grains or our Milk Kefir Kit this eGuide is included with your purchase.


You will get the eGuide as downloadable pdf so make sure you enter the correct email address when placing your order.

Last update: 12th March 2024

ONLINE CLASS: Fermentation, Microbiome and Gut...

$0.00
Add to cart

UNAVAILABLE AT THE MOMENT. Sign up below to get an email once it is available again.

We are excited to bring our very popular fermentation workshop to your home!

Classes consist of videos, online lectures, step-by-step instructions, recipes and tips and tricks. We will also answer all your questions and help you along the way. You can join anytime and watch the content at your own pace. You get 6 months to view the contents and ask questions in the forum.

Fermenting Weight

$9.90

This glass fermentation weight is just what you need to make ferments successfully at home.
Place it over your shredded vegetables and fit a fermenting airlock on the jar.
They are also great to make homemade apple cider vinegar.

Diameter is 70mm, depth 25mm
Weight: 170g +/- 10g

The weight fits most wide mouth preserving jars. Always measure the top diameter of the jars before placing an order. Make sure that the diameter does not get narrower further down.

This weight fits our 1 litre Glass Jar with stainless steel compound lid.


One weight is $8.50

Caspian Sea Yoghurt Starter Culture Shipment...

$19.90
Due to stricter requirements for dairy products we had to stop selling this starter. The hoops we would have to jump through made it unviable for us to continue.
We have a certified kitchen for our other products, but for dairy we would need a whole different set up.

But here the good news:

We will make a big batch in a certified dairy factory twice a year so you can stock up when needed. We have it available over the next week. Orders can be made until 3rd May, 8am. We will ship it on the 4th May.

 

More info and FAQ is below!

Dairy Thermometer

$15.90

Stainless Steel Thermometer for kefir, yoghurt and cheese making

13.5 cm long with clip

This thermometer is an accurate way to ensure you are heating your milk up to the right temperature for milk kefir, yoghurt and cheese making. It contains handy indicator lines so you get your temperatures right every time without even checking your recipe. 

This thermometer has a clip to attach the thermometer to a pot or jar.

Kefir Strainer

$15.90

Stainless Steel Strainer for Milk and Water Kefir Grains

10 cm diameter

Small round stainless steel sieve with a fine wire mesh.
Perfect for use when straining the kefir grains out of the finished kefir. It can also be used for sieving flour or draining food.

Water Kefir Complete Food

$6.50

Certified organic water kefir food containing sugar, molasses and micronutrients to feed your water kefir grains optimally. This pack contains the food for water kefir grains only, you need to have your own grains or buy them from us.

This way they stay healthy and produce a better probiotic fizzy drink for you and your family.


Available in 100g, 500g and 1kg bulk pack in a home-compostable, biodegradable pouch.


Containing only certified organic ingredients so that your water kefir grains can thrive (do not come with the grains). Without any roundup or other agricultural chemical residues, which could have a negative effect on the microbes in the water kefir.

Yoghurt Making Guide

$14.90

The Ultimate Dairy Yoghurt Guide

Learn how to turn dairy milk into healthy and delicious natural yoghurt without any additives.

With recipes turning yoghurt into a variety of soft cheeses and dips and using it for baking to enhance nutrient availability and flavour.


This eGuide contains 40 pages of detailed instructions and links to demonstration videos on how to make thermophilic and mesophilic yoghurt on a perpetual basis as well as recipes to turn your yoghurt into special dishes - from yoghurt icing for a cake to yoghurt cheese balls and labneh (please find the table of contents below).


This is an ebook and will be available as a pdf to download once your order is placed.

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