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).
Security policy
Secure credit card, bank transfer or POLi payment!
Delivery policy
Proudly support NZ Post/CourierPost!
Return policy
We exchange or refund if you are not happy!
Guarantee safe & secure checkout
This silicone fermentation airlock system with stainless steel screw band is designed to make home fermentation safer, cleaner, and more reliable. It is compatible with popular wide-mouth glass preserving jars including AGEE Special, Mason, Kilner, and Ball, creating a secure seal without the risk of rusting bands.
The airlock allows gases produced during fermentation to safely escape while preventing oxygen from entering the jar. This controlled environment is essential for successful lacto-fermentation, helping to reduce spoilage and support consistent results.
Ideal for kombucha, kefir, kimchi, sauerkraut, and other fermented vegetables and drinks, this system works beautifully when used alongside glass fermentation weights and quality glass jars for complete fermentation control.
Made from FDA-approved, food-grade silicone and stainless steel, the airlock is durable, reusable, and dishwasher safe—built for long-term use in a busy fermentation kitchen.
Once fermentation is complete, simply remove the airlock system and replace it with a standard lid for fridge storage.
Colour will be selected at random unless you specify your preference at checkout. Available colours include: blue, green, purple, red/pink, and white.
A simple, reusable, and reliable tool for confident home fermentation.
.jpg)
Ingredients: 1 fermentation airlock and stainless steel band
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.
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.
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.
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.
This guide covers everything you need to know to make probiotic-rich milk kefir using milk kefir grains. With over 15 years of experience, we share proven methods to help your grains thrive so you can enjoy healthy kefir for life.
Available as:
Please choose your preferred format below.
If purchasing our KoruKai Milk Kefir Grains or our Milk Kefir Kit this Guide is included with your purchase.
Instant-read stainless steel dairy thermometer for kefir, yoghurt, and cheese making. No batteries required, simply place it in milk for accurate, real-time temperature readings.
Designed by KoruKai Herb Farm, drawing on over a decade of hands-on experience in cheesemaking and dairy fermentation, it reflects practical, real-world needs in a working kitchen.
13.5 cm long with clip for easy pot or jar attachment.
Everything you need to start fermenting at home with confidence. This complete Fermentation Pack includes essential tools for safe, consistent lacto-fermentation—perfect for beginners and experienced fermenters alike.
Includes a fermentation pounder, fermenting weight, airlock system, 1L preserving jar with stainless steel compound lid, and a comprehensive eGuide.
Additional Fermentation Jars with airlock and weight can be purchased here.
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:
Please choose your preferred format below.
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:
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.
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.
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.
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.
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
Replacement jar with stainless steel compound lid for yoghurt maker.
Capacity: 900ml
Size: 17cm high
Mouth size: 7.6cm wide mouth
Silicone fermentation airlock for safe, reliable home fermenting. Allows gases to escape while keeping oxygen out, helping protect your pickles, vegetables, and drinks during lacto-fermentation. Reusable, durable, and dishwasher safe. Available in blue, green, purple, red/pink, and white.
Diameter: 8.3 cm
Also available with stainless steel ring (see separate listing).
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.
