The Kefir Ferment with Bifidus from Genesis is a product designed for homemade kefir preparation, enriched with bifidobacteria to enhance its probiotic properties. Each sachet contains 25 billion freeze-dried live cells, without preservatives, sugars, or additives. It is specially formulated without yeast, making it safe for children, pregnant women, and people with liver issues as it does not produce alcohol. One sachet can ferment up to 5 liters of milk or soy drink, and with reseeding, up to 30 glasses of kefir. The preservation of the sachet is crucial: it must be kept cold, and once opened, it should be used completely to avoid moisture and premature activation of the bacteria. If reserving, it must be sealed well and stored in the fridge for use within a week. The product has a shelf life of two years when refrigerated and one year when kept in a cool, dry place.