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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.

Why Second Ferment?

Flavor your kombucha, water kefir, or milk kefir with unique flavors, natural fizz, richer and smoother taste, less sugar, and more probiotics.

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How to
Second Ferment?

1. Fermented drink

Take kombucha or kefir from first fermentation.

2. Add flavours

Fruit, herbs, spices or syrup.

3. Second fermentation

Leave to ferment on room temperature.

4. Filter & bottle

Transfer into airtight bottles.

5. Carbonation

Ferment to build natural fizz.

6. Refrigerate & serve

Ready to enjoy.

Homemade soda

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

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.elementor-element.elementor-element-89e2698{–container-widget-width:100%;–container-widget-flex-grow:0;width:var( –container-widget-width, 100% );max-width:100%;}.elementor-665075 .elementor-element.elementor-element-ce46f58 .elementor-image-box-img{margin-bottom:10px;}.elementor-665075 .elementor-element.elementor-element-ce46f58 > .elementor-widget-container{margin:5px 5px 35px 5px;}.elementor-665075 .elementor-element.elementor-element-ce46f58{–container-widget-width:100%;–container-widget-flex-grow:0;width:var( –container-widget-width, 100% );max-width:100%;}.elementor-665075 .elementor-element.elementor-element-db95778 .elementor-image-box-img{margin-bottom:10px;}.elementor-665075 .elementor-element.elementor-element-db95778 > .elementor-widget-container{margin:5px 5px 35px 5px;}.elementor-665075 .elementor-element.elementor-element-db95778{–container-widget-width:100%;–container-widget-flex-grow:0;width:var( –container-widget-width, 100% );max-width:100%;}}

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!

Get yours!

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Free access to Kefirko Club – exclusive recipes, lectures, customer support, special discounts, expert tips…

200+

Collection of Recipes, made by Experts!

Tutorials, Learn Center & Expert Tips

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Exclusive discounts only for Club Members

 

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.

 

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

Buy now

Want to learn more
about fermenting?

Click below for our
learning resources.

LEARN CENTER


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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.

Why Second Ferment?

Flavor your kombucha, water kefir, or milk kefir with unique flavors, natural fizz, richer and smoother taste, less sugar, and more probiotics.

Homemade soda

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

A perfect way to boost your homemade kefir with nutrients and flavours!

Get yours!

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.

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

Buy now

Want to learn more
about fermenting?

Click below for our
learning resources.

LEARN CENTER

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