Fermentation Starters & Tools

Fermented foods have become popular again and find their way into many kitchens in New Zealand. Brimming with probiotics, nutrients and flavour, we can understand why. With the right tools and a helping hand we want to get you started on your journey of better health, nutrition and well-being. We offer a range of fermentation equipment from jars to airlocks and wooden pounders as well as hands-on and online workshops.

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Fermentation Pack

1 Review(s)
Price $59.00
Availability: 22 In Stock

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.

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

Fermentation Jar

3 Review(s)
Price $19.90
Availability: 84 In Stock

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.

Fermenting Weight

Price $7.90
Availability: 1714 In Stock

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 $7.90

Fermenting Airlock

Price $5.00
Availability: 514 In Stock

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.

For airlocks with ring please see here.

Fermenting Airlock with ring

Price $7.50
Availability: 89 In Stock

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 $7.50

For airlocks without ring please go here.

Fermentation Pounder

Price $29.50
Availability: 98 In Stock

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.

Fermentation, Microbiome and Gut Health Workshop

6 Review(s)
Price $125.00
Availability: Out of stock

Sign up below to get an email once a date has been set for the next workshop.

Date:  to be confirmed for June 2023

Time: 10am-2:30pm

Location: KoruKai Herb Farm, Pigeon Bay, Banks Peninsula
1 hour from Halswell, Carpooling from Chch is usually possible.
Accommodation options in Pigeon Bay, surrounding bays and Akaroa

Please find Covid related info and Terms & Conditions here. When signing up for this workshop you automatically agree to the Terms and Conditions.

ONLINE CLASS: Fermentation, Microbiome and Gut...

2 Review(s)
Price $65.00
Availability: 90 In Stock

If you are also wanting to order products to get shipped to you then please place a separate order so the shipping gets charged correctly.

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.

DIY Apple Cider Vinegar Kit

Price $25.00
Availability: 10 In Stock

We have put together this kit for anyone wanting to make their own apple cider vinegar.


Apple cider vinegar is easy and satisfying to make at home and the health benefits are numerous.

A lot of cider vinegar in the supermarkets are pasteurised and filtered. This removed the microbiome of the vinegar and you won't get the maximum health benefits from it.

Water Kefir Kit

Price $49.90
Availability: 12 In Stock

NOW also containing 100g of water kefir food.


We have put together this kit for anyone wanting in making delicious water kefir at home.

The KoruKai Herb Farm "Water Kefir Guide" will guide you along step by step to make your own probiotic, healthy, fizzy water kefir sodas at home.

You can get an additional glass jar here.


Shipment of fresh water 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.

Water Kefir Grains

3 Review(s)
Price $18.00
Availability: 12 In Stock

Make your own fizzy, probiotic drink to benefit your digestive tract.

Vegan cousin of milk kefir and caffeine-free friend of kombucha.

3 Tbsp of active organic water kefir grains to make 1 litre of fizzy, probiotic drink in 48 hours.

Come with our comprehensive guide and recipes for lots of inspiration.

We recommend our Water Kefir Complete Food to feed the grains optimally.

Shipment of fresh water 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.

Water Kefir eGuide

Price $7.50
Availability: 28 In Stock

Newly updated guide with more recipes and tips. A fresh FAQ section has also been added.

This guide covers all the basics that you need to know to create probiotic, healthy, fizzy water kefir sodas.
It includes instructions how to make the frist and the second ferment and includes recipes and flavour combinations.

You will get the guide as downloadable pdf so make sure you enter the correct email address when placing your order. Please look for an email with the subject line: [KoruKai Herb Farm] Files available for your order

Last update: 22nd June 2022

Juice Fasting Support Pack

Price $95.00
Availability: 45 In Stock

One of the most powerful things you can do for your health, well-being and longevity is fasting.
During fasting you are giving your digestive system a rest and allowing your body to literally take the rubbish out.

Can can do a day, two days or 5+ days of fasting. With this pack you are set to go.

It contains our Juice Fasting Guide (see below), which will be sent to you in pdf format as well as a paper copy. A 30g pack of herbal tea from our KoruKai range of your choice. A 20-minute private consultation with Cornelia to help you with preparing and transitioning into a juice fast as well as answer questions that you may have. You are also able to reach out via email anytime during your juice fast. We are here to support you!

Fermentation Flask

1 Review(s)
Price $69.00
Availability: Out of stock

OUT OF STOCK

Back in stock in June. Sign up below to get an email notification once it is back in stock.

This Fermenting Flask from Culture Cupboard is perfect to keep your kefir at a steady temperature without the nighly 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.

Kitchen Thermometer

Price $15.00
Availability: 53 In Stock
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. It has saved the life of kefir grains more than once and is essential for probiotic yoghurt making.

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

Milk Kefir Grains 18th July

39 Review(s)
Price $18.00
Availability: 9 In Stock

Due to high demand we are sold out 2 weeks in advance. You can order now for shipment on the 18th July 2022. Please note that your whole order will get shipped on the same day. If you need other items earlier, then please place separate orders.

1 portion of active milk kefir grains to culture 1-2 cups of milk in 24 hours.


Shipment of fresh milk kefir grains every Monday (or Tuesday if Monday is a public holiday). Please check the next shipment date above. Orders and PAYMENTS need to be in by 4pm Saturday to get shipped on the above day.

Milk Kefir eGuide

Price $5.00
Availability: 37 In Stock
This guide covers all the basics that you need to know to create probiotic, healthy milk kefir.

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

Last update: 1st October 2020

Milk Kefir Kit 18th July

Price $48.00
Availability: 9 In Stock

Due to high demand we are sold out 2 weeks in advance. You can order now for shipment on the 18th July 2022. Please note that your whole order will get shipped on the same day. If you need other items earlier, then please place separate orders.

1 portion of active milk kefir grains to culture 1-2 cups of milk in 12-24 hours.


This kit contains all the basic equipment that you need to make probiotic milk kefir at home.
An additional glass jar for keeping ready kefir 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). Please check the next shipment date above. Orders and PAYMENTS need to be in by 4pm Saturday to get shipped on the above day.

Kefir Strainer

Price $12.00
Availability: 109 In Stock
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. Can also be used for sieving flour or draining food.

Water Kefir Complete Food

Price $6.00
Availability: 6 In Stock

Certified organic water kefir food containing sugar, molasses and micronutrients to feed your water kefir grains optimally.
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 the water kefir grains can thrive. Without any roundup or other agricultural chemical residues, which could have a negative effect on the microbes in the water kefir.

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