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SECOND
FERMENTATION
12.10 € - 20.60 €
What is Second Fermenation?
It happens after removing primary culture (kefir grains/SCOBY). Enhances flavor and natural carbonation in your fermented drinks. You can add fruit, juice, spices, or other ingredients to create unique, personalized flavors and a smoother, richer taste.
Primary and Second (Secondary) Fermentation
- Starter culture and liquid
- Fermentation (primary)
- Remove culture and add flavor
(syrup, fruit, herbs) - Fermentation (secondary)
- Bottling and serving
Why Second Ferment?
Enhance your kombucha, water kefir, or milk kefir with unique flavors, natural fizz, richer and smoother taste, less sugar, and more probiotics.
Flavour Your Drink
Experiment with flavors for a healthier, tastier soda.
Second Fermentation Bottle helps you make natural drinks at home with ease and consistency.
| Challenge | Kefirko Solution |
| Straining and adding flavorings easily | ✔ |
| Controlling air exposure and carbonation | ✔ |
| Measuring time | ✔ |
| High quality, non-reactive materials | ✔ |
| Convenient drinking & transport | ✔ |
Second Fermentation Bottle
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.
A perfect way to boost your homemade kefir with nutrients and flavours!
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Benefits of Second Fermentation:
🍓 Experiment with flavors
Create colorful, vibrant beverages with ease.
🥤 Naturally fizzy
A healthy, refreshing soda made by fermentation.
🌿 Alternative to alcoholic, store-bought drinks
Delicious and gentle on your body.
✨ Adds flavor complexity
Richer, more interesting drinks with natural depth.
🦠 Preserves probiotics
More beneficial bacteria and better for gut health.
🍬 Less sugar
Healthy and low sugar drink.
🏡 Homemade and natural
No additives — only what you choose.
🧑🍳 Easy to customize
Use fruits, herbs, or spices for endless variations.
💰 Cost-effective
One bottle, endless creative batches.
How to Second Ferment?
Remove the cultures from the first fermentation, add fruits, herbs, or juice, and let it ferment for a few hours to a few days, depending on your drink.
People just love it.
You don't have to believe our word.
Professionals love it
Donna Schwenk
Culturedfoodlife.com
Rated 5 out of 5
“This is a wonderful product. Something I was searching for. Good work!”
Jenny McGruther
nourishedkitchen.com
Rated 5 out of 5
“This delightful little tool Kefirko is the best for simple preparation of kefir or yogurt.”
Customer reviews
Laurie M.
Rated 5 out of 5
“Heavy duty glass jar fits nicely in your hand. The small top makes it easy to drink from the jar. The big lid and size of the jar opening makes it easy to clean as you can easily fit your whole hand and scrubber inside. The gasket inside the lid is easy to remove and replace during cleaning. The big lids are interchangeable with other of their 900ml and 1400ml jars. Stylish and practical.”
Giselle
Rated 5 out of 5
“I bought this in order to have pour spouts on rotation for my kefir storage glass. Very handy to keep things tidy and clean. Another smart design from Kefirko.”
Includes
1 – Fermentation clock
2 – Closing lid
3 – Lid
4 – Sealing ring
5 – Glass jar
Product dimensions and weight
-15%
Shop bundles
-15%
| Weight | N/A |
|---|
32 reviews for Second Fermentation
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(translated)Practical and beautiful.
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(translated)
I am very satisfied with the dishes. Beautiful and practical.
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-
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A great addition to the glasses. I love that all the lids can be combined with the jars.
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Great container!
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Good service 👍🙏
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I picked up the smaller size fermenter, because I wanted it to fit normally on my fridge shelf. The pouring spout keeps things clean (no drips!) and functions as a neat storage pot for keeping drinkable kefir on tap. When I make more kefir, I just top off the 2nd fermenter and make cheese/whey from the remainder. Weck jars are terrific, additional storage and usable for other things, but make for a messy pour. My fermenter came with the fermentation clock. This is also smartly designed. I accidentally dropped the disk in my kefir once. Just needed a rinse off. No warpage. We go through enough kefir that I now use the fermentation clock when I have to put the kefir grains to sleep for a few days or weeks. All in all, it was a smart purchase. Keeps the kefir making and consuming streamlined in the kitchen.
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Heavy duty glass jar fits nicely in your hand. The small top makes it easy to drink from the jar. The big lid and size of the jar opening makes it easy to clean as you can easily fit your whole hand and scrubber inside. The gasket inside the lid is easy to remove and replace during cleaning. The big lids are interchangeable with other of their 900ml and 1400ml jars. Stylish and practical.
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zelo priročno
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It works good, the caps create a of lot of fizz!
But what i miss is a sieve option, i put fruit/herbs in for my second fermentation and i use the caps of the first fermentation bottles to sieve the fruit/herbs out which works fine but it would be easier if the was a sieve option in these caps too.
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Dobro služi svojemu namenu, vendar predrag za to, kar je: nekoliko širši kozarec za vlaganje s plastičnim pokrovom in zamaškom. Stekleni kozarci so isti pri fermentorju in pri tem izdelku, razlika je samo v pokrovčkih.
Dodaten minus je ta, da plastični deli niso pralni v pomivalnem stroju. Pri tej ceni izdelka bi lahko bili.
Je koristen in praktičen pripomoček, vendar ni nujen za izdelavo dobrega domačega kefirja. Ta se lahko naredi tudi v navadnem kozarcu za vlaganje ali čem drugem.
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Shipping cost: the cost of shipping is very expensive and takes a long time (uses regular post). Shipping cost is Euro 30 for an order of Euro 48. Also, the shipping address was not written accurately.
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Quality ver good. Shipment mistake but CS was helpful and solved the issue quickly.
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it’s ok
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The pots are made of sturdy material and work perfectly. About pressure that occurs with water kefir is no longer on the agenda. Beautiful appearance
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Ne vem kaj je sekundarna fermentacija.
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sve on
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Sehr praktisch, verwende es gern
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I bought this in order to have pour spouts on rotation for my kefir storage glass. Very handy to keep things tidy and clean. Another smart design from Kefirko.
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Uglavnom staklenku s poklopcem koristim za pohranu kefira u frižider i sigurno sipanje za konzumaciju. Preporuka👍🏻.
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If you are planning to consume Combucha everyday of the week get two on theese. Nice glass thickness.
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Good product, fast delivery
Show only reviews in English (24)
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32 reviews for Second Fermentation
Mirjana Oražem –
Practical and beautiful.
Albina Haberman –
Mirjana Oražem –
I am very satisfied with the dishes. Beautiful and practical.
Tom –
Jan Čermák –
Daniela –
A great addition to the glasses. I love that all the lids can be combined with the jars.
Alexander Timchenko –
Great container!
Erika –
Good service 👍🙏
Anonymous –
I picked up the smaller size fermenter, because I wanted it to fit normally on my fridge shelf. The pouring spout keeps things clean (no drips!) and functions as a neat storage pot for keeping drinkable kefir on tap. When I make more kefir, I just top off the 2nd fermenter and make cheese/whey from the remainder. Weck jars are terrific, additional storage and usable for other things, but make for a messy pour. My fermenter came with the fermentation clock. This is also smartly designed. I accidentally dropped the disk in my kefir once. Just needed a rinse off. No warpage. We go through enough kefir that I now use the fermentation clock when I have to put the kefir grains to sleep for a few days or weeks. All in all, it was a smart purchase. Keeps the kefir making and consuming streamlined in the kitchen.
Laurie M. –
Heavy duty glass jar fits nicely in your hand. The small top makes it easy to drink from the jar. The big lid and size of the jar opening makes it easy to clean as you can easily fit your whole hand and scrubber inside. The gasket inside the lid is easy to remove and replace during cleaning. The big lids are interchangeable with other of their 900ml and 1400ml jars. Stylish and practical.
Adnan D. –
Igor P. –
zelo priročno
Gabrielle –
It works good, the caps create a of lot of fizz!
But what i miss is a sieve option, i put fruit/herbs in for my second fermentation and i use the caps of the first fermentation bottles to sieve the fruit/herbs out which works fine but it would be easier if the was a sieve option in these caps too.
Nevenka V. –
Teja gogate –
Willeke –
Anonimno –
Dobro služi svojemu namenu, vendar predrag za to, kar je: nekoliko širši kozarec za vlaganje s plastičnim pokrovom in zamaškom. Stekleni kozarci so isti pri fermentorju in pri tem izdelku, razlika je samo v pokrovčkih.
Dodaten minus je ta, da plastični deli niso pralni v pomivalnem stroju. Pri tej ceni izdelka bi lahko bili.
Je koristen in praktičen pripomoček, vendar ni nujen za izdelavo dobrega domačega kefirja. Ta se lahko naredi tudi v navadnem kozarcu za vlaganje ali čem drugem.
Elke Lecocq –
Anonymous –
Shipping cost: the cost of shipping is very expensive and takes a long time (uses regular post). Shipping cost is Euro 30 for an order of Euro 48. Also, the shipping address was not written accurately.
Andrzej –
Quality ver good. Shipment mistake but CS was helpful and solved the issue quickly.
Wim-Rien Dijkstra –
it’s ok
Roland –
The pots are made of sturdy material and work perfectly. About pressure that occurs with water kefir is no longer on the agenda. Beautiful appearance
Miranda Roj –
Ne vem kaj je sekundarna fermentacija.
Ivica P. –
sve on
Jan –
Gusti –
Sehr praktisch, verwende es gern
Anonym –
Giselle –
I bought this in order to have pour spouts on rotation for my kefir storage glass. Very handy to keep things tidy and clean. Another smart design from Kefirko.
Anoniman –
Uglavnom staklenku s poklopcem koristim za pohranu kefira u frižider i sigurno sipanje za konzumaciju. Preporuka👍🏻.
Giselle –
PANAGIOTIS P. –
If you are planning to consume Combucha everyday of the week get two on theese. Nice glass thickness.
Anonyme –
Good product, fast delivery
Show only reviews in English (24)