Water Kefir Guide

500ml food screwtop jar and white foodseal cap used for our milk kefir kit.

Capacity: 500ml

Diameter: 9.9cm

Height: 10cm

Cap size: 9.2cm

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.

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.

Fermentation jar with airlock and glass weight.

One thing that should be in just about everyone's diet are fermented or cultured foods. Not only are they packed with flavor, but they're positively brimming with probiotics.

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.

Billions of probiotics per tablespoon for gut health.

1 portion of organic milk kefir grains to culture 1 cup of milk every 24 hours, which can increase to 1 litre within 2 weeks. Available in hydrated and dehydrated form (please select below).

Shipment NZ wide to urban and rural addresses as well as PO Boxes.

Shipment of fresh milk kefir grains every Monday (or Tuesday if Monday is a public holiday). Orders and payments need to be in by 4pm Saturday to get shipped the following Monday.

We have a set amount of grains per week and are generally out of stock by the end of each week. If this product is out of stock it will be back in stock on Saturday evening, so you can order for the following week.

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

Diameter of airlock is 8.4cm

One airlock with ring is $8.90

For airlocks without ring please go here.

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.

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.

We have made a great amount of ferments over the years at KoruKai Herb Farm and used a fair bit of pounders. We know what makes a pounder fabulous.
This one is made to our measurements and is well-designed for pounding vegetables and tightly packing them into jars or crocks for best fermentation.

The wood is untreated beech.

Measurements: length 30cm, top diameter 4cm, bottom diameter 6.1cm. Easy and comfortable grip with a tapering of 3.5cm diameter.

Please note: Measurements can vary slightly as each one is handmade and unique.

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

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.

Fermenting, preserving  and storage jar with stainless steel compound lid.

Capacity: 1000ml

Size: 17cm high

Mouth size: 7.6cm wide mouth

Fully booked! To go onto the waiting list please sign up below. 

This is an informative workshop for anyone interested in healthy food. No cooking skills are required. You will walk away with some easy recipes that you can implement in your own kitchen using basic equipment.

Date: Saturday, 2nd May 2026
Time: 10am-2:30pm

Location: KoruKai Herb Farm, Pigeon Bay, Banks Peninsula
1 hour from Halswell, Carpooling from Chch is usually possible.

Wholesome lunch included!

Please find Terms & Conditions as well as our cancellation policy here. When signing up for this workshop you automatically agree to the Terms & Conditions. Please make sure to read them.

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

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.

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.