Milk Kefir Guide

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.

We’ve created this DIY kit for anyone wanting to make their own raw apple cider vinegar at home.

Making apple cider vinegar is simple, rewarding, and a great way to enjoy its many natural health benefits. Unlike many supermarket varieties that are pasteurised and filtered, homemade vinegar retains the “mother” — the living culture and beneficial microbiome that give raw apple cider vinegar its full character and potential benefits.

After years of fermenting at KoruKai Herb Farm, we’ve used (and tested) plenty of pounders—so we know exactly what works best.

This fermentation pounder is designed to our own specifications for efficiently pounding vegetables and tightly packing them into jars or crocks, helping release juices for successful lacto-fermentation.

Made from untreated beech wood, it is strong, natural, and comfortable to use, with a well-balanced shape for everyday kitchen fermenting.

Measurements: Length 30cm | Top diameter 4cm | Bottom diameter 6.1cm | Tapered grip approx. 3.5cm

Please note: As each pounder is handmade, slight variations in size may occur, making every piece unique.

Heavy-duty glass fermentation weight designed to keep vegetables fully submerged during lacto-fermentation. Fits most standard wide-mouth preserving jars including Mason, Kilner, Ball, and Agee jars. Easy to clean, reusable, and dishwasher safe.

Size: 70mm diameter x 25mm depth
Weight: 170g ±10g

Always measure the top diameter of your jar before placing an order. Make sure that the diameter does not get narrower further down.

This Yoghurt Maker from Culture Cupboard is great for making homemade yoghurt - without the need for an electric yoghurt maker. It also helps maintain a steady fermentation temperature year-round, protecting kefir and cultures from cold winter nights and fluctuating summer heat.

The insulated flask includes a glass jar and recipe booklet with instructions for both dairy and dairy-free yoghurts, making it an easy and energy-efficient tool for home fermentation.

Learn how to make delicious, probiotic-rich sauerkraut, kimchi, pickles, and fermented vegetables at home with our comprehensive Lacto-Fermentation Guide.

Drawing on more than 10 years of hands-on fermentation experience at KoruKai Herb Farm, this practical guide teaches traditional lacto-fermentation methods to help preserve seasonal harvests while supporting gut health naturally.

Perfect for turning an abundance of cabbages, carrots, beetroot, and other vegetables into vibrant, living foods packed with beneficial microbes.

Available as:

• Downloadable PDF
• Printed booklet (with shipping cost)

Please choose your preferred format below.

pH strips are a quick and easy way to check the acidification of your cheese and ferment.

In a lactic ferment and in cheese making beneficial microbes are underway to turn plant sugars and lactose into lactic acid.

This acidification can be measured and ensures your ferment or your cheese is on the right track.

For most cheeses timing of salting is really important; you want the fermentation to be just at the right acidity before you apply salt to slow it down.

This guide covers all the essentials you need to create delicious, probiotic, and naturally fizzy water kefir sodas at home. Learn how to successfully make both the first and second ferment, along with flavouring ideas, recipes, and helpful tips for creating delicious homemade kefir sodas.

Perfect for beginners and experienced fermenters alike.

Available as:

• Downloadable PDF
• Printed booklet (A5, with shipping cost)

Please choose your preferred format below.

If purchasing our KoruKai  Water Kefir Grains or our Water Kefir Kit this Guide as pdf is included with your purchase.

Silicone fermentation airlock with stainless steel band, designed for safe, reliable lacto-fermentation. Allows gases to escape during fermentation while preventing air from entering, helping protect your ferments from spoilage.

Ideal for pickles, vegetables, and fermented drinks.

As pressure builds, gas safely vents through the airlock without allowing oxygen back in.

Diameter airlock: 8.3 cm

Also available without ring (see separate listing).

Replacement jar with stainless steel compound lid for yoghurt maker.

Capacity: 900ml

Size: 17cm high

Mouth size: 7.6cm wide mouth

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.

A must-have for cheesemaking and dairy fermentation.

This high-quality cheesecloth is made from certified organic cotton and is ideal for straining curds, making kefir cheese, yoghurt cheese, labneh, soft cheeses, and other cultured dairy products.

Reusable, washable, and free from synthetic fibres, it provides excellent drainage while remaining gentle on delicate curds.

Size: 1.5m × 1m

Billions of probiotics per tablespoon for gut health.

Everything you need to start making delicious, probiotic-rich milk kefir at home.

This beginner-friendly Milk Kefir Making Kit includes organic milk kefir grains, a wide-mouth glass jar, stainless steel strainer, dairy thermometer, and our comprehensive Milk Kefir eGuide with step-by-step instructions.

A simple and affordable way to make fresh kefir again and again from your own kitchen.

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 4pm Saturday to get shipped the following Monday.

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.

Billions of live probiotics in every tablespoon.

One portion of organic milk kefir grains cultures approximately 1 cup of milk every 24 hours and can multiply to culture up to 1 litre within two weeks under good conditions. Available in hydrated or dehydrated form (please select below).

Easy to use and endlessly reusable, milk kefir grains allow you to make fresh, probiotic-rich kefir.

Shipping Information

NZ-wide shipping available to urban and rural addresses, including PO Boxes.

Fresh milk kefir grains are shipped every Monday (or Tuesday if Monday is a public holiday). Orders and payment must be received by 4pm Saturday for dispatch the following Monday.

Stainless steel fine-mesh strainer designed for separating milk and water kefir grains from finished kefir. Durable, easy to clean, and ideal for everyday fermentation use.

10 cm diameter compact round sieve with fine wire mesh—also suitable for general kitchen straining, sifting flour, or draining small foods.