What Is Kefir, and Why Is It Called the 'Drink of Microbes'?
Kefir is a fermented beverage born from the interaction of diverse microbial strains, forming a symbiotic culture known as tibicos grains (also called water kefir grains). The process begins when these grains are submerged in sugar water or fruit juice and allowed to ferment slowly for two 24-hour cycles. The result is a drink with a gentle acidity — pH 4.32 — that is easily digestible and kind to the stomach.
What sets kefir apart from ordinary probiotic drinks is its remarkable microbial diversity. It contains a balanced consortium of bacteria, yeasts, and molds living in harmony. Key strains include Lactobacillus, Bifidobacterium, Streptococcus, Saccharomyces, and Kefiranofaciens — each playing a distinct role in digestion, lactic acid production, and fortifying the gut's defensive barriers.
The double-fermentation method allows these microbes to develop fully while keeping residual sugar remarkably low: just 2.1 grams per bottle. Although the initial sweetness comes from sugar used in fermentation, most of it is consumed by the microorganisms, making kefir a prudent choice for those mindful of sugar intake.
Microbial Diversity: The Heart of Kefir
Kefir made from heritage tibicos grains contains 36 distinct microbial strains — an exceptionally high number compared to typical probiotic products that offer only 1–5 strains. This diversity is not a mere statistic; it is the mechanism that helps the gut ecosystem adapt and recover more effectively.
Each strain contributes unique functions. Lactobacillus acidophilus helps break down sugars and supports immunity. Bifidobacterium longum is associated with mental well-being through the gut–brain axis. Saccharomyces cerevisiae aids carbohydrate digestion and may reduce bloating. Meanwhile, Kefiranofaciens produces a protective biofilm that coats the intestinal lining, helping to prevent the infiltration of toxins and pathogens.
When multiple strains coexist naturally, kefir does more than increase the count of beneficial bacteria — it enables those microbes to survive and thrive within the complex environment of the gut. This synergy is often absent in single-strain probiotics, whose effects can be limited.
Measurable Nutritional Value
Each 280 ml bottle of Rokabo kefir delivers a stable concentration of ~12 billion CFU/ml — a verified figure, not an estimate or average. Every batch is rigorously tested to ensure consumers receive a sufficient quantity of live microorganisms to influence their gut flora.
The pH of 4.32 is carefully calibrated: acidic enough to support good bacteria yet gentle on the stomach, avoiding irritation while allowing beneficial strains to function optimally.
Sugar content stands at 2.1 grams per bottle, far below the typical 10+ grams found in many commercial beverages. Most of the sugar is metabolised during fermentation, rendering kefir not only low in sugar but also suitable for those managing insulin sensitivity or blood sugar levels.
A Fermentation Philosophy That Respects Nature
At Rokabo, we use heritage tibicos grains originating from the Caucasus region. The fermentation takes place in a controlled environment in Nonthaburi, Thailand, over two 24-hour cycles — unhurried, without excessive pressure or heat. This double fermentation efficiently reduces sugar to a minimal level while increasing lactic acid, which helps create a gut environment favourable to beneficial bacteria. It also yields a balanced, deeply flavourful kefir — tangy but never harsh.
We add no preservatives, pasteurise only as needed to ensure safety (without destroying live cultures), and avoid filtration that would strip away microbial richness. Every step is designed to preserve the purity and living nature of kefir, from grain to bottle. This embodies our Neo-Wabi Bio-Lab philosophy, blending Japanese simplicity with Thai warmth.