Take your homemade kefir to the next level! Simply transfer strained kefir into our Second Fermentation Bottle, add your favorite fruits, herbs, or spices, and let it sit for 12-48 hours. The result? Enhanced flavor, natural fizz, and even more even more beneficial microorganisms!
Step 1: Ferment
Add kefir grains & milk/water into the Kefir Fermenter and let nature do its magic.
Step 2: Strain & Transfer
Easily separate grains and enjoy kefir or pour into the Second Fermentation Bottle.
Step 3: Flavor & Carbonate
Infuse with fruits, herbs, or spices, and let it fizz!
Step 4: Enjoy!
Probiotic-rich, refreshing kefir with enhanced flavor!
What’s Included in the Bundle
Kefir Fermenter
All-in-one tool for kefir making that brings tradition into modern kitchen.
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Straining and separation of grains of homemade kefir
STRAINER LID
Strain thick kefir and separate grains easily With integrated sieve designed for the size of grains. The sieve has two pouring areas, one with larger strainer slots and another with smaller ones.
SCRAPER
Designed to mix kefir grains during straining and aid separation. Covers the strainer lid opening and prevents clogging.
TWO-PIECE LID
Controlling air exposure
Can be fully closed or left open partially to enable airflow during fermentation. Blocks impurities (dust, insects) from entering the jar, even when left slightly open. Made from bioplastic.
PLAN PORTIONS
Portion Markings on a glass
The markings on the jar divide the volume to 300 ml portions.
Measuring cup for grains.
Easily measure grains for one batch of kefir.
High-Quality Glass Jar
Durable, easy to clean, and food-safe (non-reactive with ferments).
Features a wide-neck design for effortless cleaning and easy handling.
Designed to Fit
Perfectly shaped to fit in your fridge door, on a shelf, or as a stylish addition to your kitchen counter—functional, practical, and effortlessly chic.
Alternative use
Perfect not only for milk kefir, but also ideal for water kefir and other homemade fermented drinks.
Stirrer or slotted spoon
A practical utensil for adding grains and stirring your kefir effortlessly. Stirrer comes along with small Kefir fermenter, slotted spoon comes with a large Kefir fermenter.
JUICER
Attaches directly to the strainer lid for easy addition of fresh citrus juice.
Includes
1 – Top lid 2 – Strainer lid 3 – Sealing ring 4 – Glass jar 5 – Stirrer (with small fermenter) / Spoon (with large fermenter) 6 – Juicer 7 – Scraper 8 – Booklet with instructions and access to recipes
Second Fermentation Bottle
Experiment with flavors for a healthier, tastier soda.
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GLASS JAR
Wide-mouth glass jars are easy to use and clean, allowing you to add or remove ingredients. High-quality glass does not react with ferments and lets you monitor fermentation through transparency.
AIRTIGHT LID
Fermented drinks stay fresher for longer with an air-tight lid! Enjoy consistent carbonation, protected flavor, and safe drinking.
FERMENTATION CLOCK
Set the day in the month when you start the second fermentation. Track progress, avoid over-fermentation and achieve consistent results every time.
DRINKABLE SPOUT
A jar with a drinkable spout lets you enjoy fermented drinks on-the-go, mess-free, spill-free, and in a more sustainable way.
TAKE IT WITH YOU
Easy to use and perfect to take Kefirko with you on your travels and to never miss out on your daily dose of your favourite fermented drink.
DESIGNED TO FIT
Perfectly shaped to fit in your fridge door, on a shelf, or as a stylish addition to your kitchen counter—functional, practical, and effortlessly chic.
Includes
1 – Fermentation clock 2 – Closing lid 3 – Lid 4 – Sealing ring 5 – Glass jar
+ Access to recipes
from leading fermentation experts: Donna Schwenk, Marie-Claire Frédéric, and many more!
Why Get Them Together
Designed to complement each other
Ferment fresh kefir and instantly enhance it with natural fizz and flavors. Just pure fermented goodness!
Maximize your gut-friendly cultures
Enjoy the natural goodness of kefir in one simple process.
A perfect fit for any kitchen
Both products are space-saving,and beautifully crafted for your
kitchen.
Easy-to-use
Designed for beginners and fermentation enthusiasts.
Save money
Bundled together at a special price – cheaper than buying separately.
Bundle Bonus: 10% OFF
for a limited time!
Start your fermentation journey today
healthier, tastier, and homemade.
You don't have to believe our word that you can make the best kefir in the world.
Check out the joy of our existing customers.
Urška Fartelj
220stopinjposevno.com
Rated 5 out of 5
“I am very happy that more and more people are enthusiastic about fermented food, which is so good for our health! With the Kefir fermenter, preparing superfood at home is even easier. I am very proud to be a part of this story.”
Suzana Kranjec
fermentiraj.si
Rated 5 out of 5
“This is the best thing we can wish for in fermenting. Kefirko is a Slovenian brand and their accessories are really useful for all fans of fermented beverages.”
Donna Schwenk
Culturedfoodlife.com
Rated 5 out of 5
“This is a wonderful product. Something I was searching for. Good work!”
Free access to Kefirko Club - exclusive recipes, lectures, customer support, special discounts, expert tips…
19 reviews for Kefir Fermenter + Second Fermentation
Rated 5 out of 5
Helena Tomse –
Izpopolnjena izkušnja je kefir s sekundarno fermentacijo. Prav bi mi prišle ideje za dodajanje okusov.
Rated 5 out of 5
Jana –
Both bottles are just as described and look beautiful. They’re also highly practical. I went for the large size—initially wondering if I’d been a bit too ambitious—but they’ve been filling up more and more with delicious kefir each day, so I suspect they won’t feel too big for much longer.
Rated 5 out of 5
Branko –
Rated 4 out of 5
Jan –
Rated 5 out of 5
Anonimno –
Rated 4 out of 5
Petar Dobrivojević –
Ne slaže mi se sve sa korpom, jer sam naričivao sve veće posude od 1,4 lit.
Rated 5 out of 5
Anonimno –
Rated 5 out of 5
Nevenka Prasnikar –
Rated 5 out of 5
Anonimno –
Rated 5 out of 5
Kathrin B. –
Der Kefir fermentiert super einfach und kann direkt ins Zweitgefäß umgezogen werden.
Das Gitter mit dem Rührer sorgt dafür, dass die Kefirpilze im ersten Behälter verbleiben.
Das Kefirko ist super durchdacht!
Habe es schon an Freunde verschenkt, die ebenfalls begeistert sind.
Rated 5 out of 5
Kevin V. –
The integrated sieves of two sizes are quite handy. Additionally, the attachments are also a nice touch.
Rated 5 out of 5
Anonym –
Rated 5 out of 5
Andreas M. –
Excellent bundle, the product clearly has been in development for some years and this shows.
Rated 5 out of 5
NERA –
Kupila sam malu posudu za fermentaciju i sekundarnu fermentaciju i toliko sam odusevljena sa svime i posuda i procesom i okusima vodenog kefira da mi je na kraju zao sto imam malu posudu.
Rated 5 out of 5
Lucy –
Wonderful service thankyou! Although something arrived broken it was fixed immediately!
sara.k –
Thank you for your comment! Nice fermenting!
Rated 4 out of 5
Rody W. –
Rated 5 out of 5
Anonymous –
Rated 5 out of 5
Anonimno –
Rated 4 out of 5
Anonym –
Schnelle Lieferung, gute Gläser, die Plastikteile wirkten früher hochwertiger.
Helena Tomse –
Izpopolnjena izkušnja je kefir s sekundarno fermentacijo. Prav bi mi prišle ideje za dodajanje okusov.
Jana –
Both bottles are just as described and look beautiful. They’re also highly practical. I went for the large size—initially wondering if I’d been a bit too ambitious—but they’ve been filling up more and more with delicious kefir each day, so I suspect they won’t feel too big for much longer.
Branko –
Jan –
Anonimno –
Petar Dobrivojević –
Ne slaže mi se sve sa korpom, jer sam naričivao sve veće posude od 1,4 lit.
Anonimno –
Nevenka Prasnikar –
Anonimno –
Kathrin B. –
Der Kefir fermentiert super einfach und kann direkt ins Zweitgefäß umgezogen werden.
Das Gitter mit dem Rührer sorgt dafür, dass die Kefirpilze im ersten Behälter verbleiben.
Das Kefirko ist super durchdacht!
Habe es schon an Freunde verschenkt, die ebenfalls begeistert sind.
Kevin V. –
The integrated sieves of two sizes are quite handy. Additionally, the attachments are also a nice touch.
Anonym –
Andreas M. –
Excellent bundle, the product clearly has been in development for some years and this shows.
NERA –
Kupila sam malu posudu za fermentaciju i sekundarnu fermentaciju i toliko sam odusevljena sa svime i posuda i procesom i okusima vodenog kefira da mi je na kraju zao sto imam malu posudu.
Lucy –
Wonderful service thankyou! Although something arrived broken it was fixed immediately!
sara.k –
Thank you for your comment! Nice fermenting!
Rody W. –
Anonymous –
Anonimno –
Anonym –
Schnelle Lieferung, gute Gläser, die Plastikteile wirkten früher hochwertiger.