Description
Probiotic Rich
Crafted through natural fermentation for superior gut support.
Lab Tested Purity
Regularly lab screened to ensure 100% pathogen free purity.
Simple and Versatile
Easily to brew at home with minimal equipment.
What Are Water Kefir Grains?
Water kefir grains are translucent, gel-like clusters that form a natural polysaccharide matrix, similar in structure to the kefiran found in milk kefir grains. This matrix harbours a stable community of lactic acid bacteria, acetic acid bacteria, and beneficial yeasts that work together to ferment sugar into organic acids, carbon dioxide, and probiotic metabolites.
Not sure what water kefir is? Read our complete beginner’s guide to kefir.
The Science Behind Water Kefir Grains
- Naturally Dairy Free: Water kefir grains ferment sugar water rather than milk, making them suitable for vegan, lactose intolerant, and dairy free households.
- Self Propagating Cultures: With regular feeding, heirloom water kefir grains grow and multiply indefinitely, providing a continuous supply from a single purchase.
NutriBrew Mastery Tip: The Mineral Lift
To accelerate fermentation or maximize grain multiplication, introduce a targeted mineral lift. Incorporate 1/2 teaspoon of organic pure blackstrap molasses per litre alongside your primary sugar. This infusion provides the essential trace minerals required to keep your cultures plump, resilient, and high-yielding.
Supporting Global Microbiome Research
NutriBrew is a proud supporter of the Citizen Science project, part of the EU-funded MASTER project.
In professional collaboration with Teagasc, APC Microbiome Ireland, and VistaMilk, our water kefir grains were studied to investigate microbial diversity over extended fermentation periods.
This rigorous research allows us to understand how our heirloom cultures adapt to diverse home brewing environments, ensuring we provide only the most resilient and biologically potent grains to our community.
How to Make Water Kefir at Home
Each order contains live, active water kefir grains submerged in a mineral rich solution, ready to begin fermenting within 24 hours of arrival. No activation required. Find out more about the health benefits of kefir and what regular consumption may do for your gut.
- Yield: 50 grams of grains will produce approximately 1L of water kefir every 24–48 hours.
- Simplicity: Simply place the grains in sweetened water, cover loosely, and leave out of direct sunlight in a warm room (20°C to 22°C) for 24 hours.
The Bio Activity Advantage: NutriBrew vs. Store Bought
Water Kefir Success: Frequently Asked Questions
Mastering the art of home brewed probiotics begins with understanding the biology of your grains. Below, we address the essential questions regarding the vitality, setup, and long term care of your NutriBrew heirloom water kefir cultures.
Master Your Fermentation Journey
Scientific research links on the benefits and potential health effects of water kefir:
- Laboratory reviews confirm water kefir’s complex biology, highlighting a potent microbial matrix that supports metabolic health and demonstrates antimicrobial and anti-inflammatory potential through organic acids and bioactive metabolites: https://pmc.ncbi.nlm.nih.gov/articles/PMC11259891/?
- Peer-reviewed research validates water kefir’s metabolic activity, showing that its fermentation metabolites support systemic wellness with documented antioxidant and antimicrobial benefits for intestinal health: https://www.mdpi.com/2227-9717/13/3/885?
