Kefir is a fermented milk-based drink that originated in the southwestern regions of Russia. It is obtained by adding "kefir grains" to cow, goat or sheep milk. These are small granules of protein, sugar and fat that contain live colonies of various types of bacteria and yeasts. These microorganisms ferment the lactose in milk within a day; the result is a tart, bubbly and slightly alcoholic drink well known for its probiotic qualities. It is not easy to make the grains from scratch, but you can buy them at different retailers. Once bought, you can keep the bacterial colony alive to avoid having to buy them again.
Steps
Step 1. Decide if you prefer fresh grains or powdered crops
The former are the ones preferred by people who regularly consume the drink. They can propagate continuously with minimal effort, so you only have to buy them once. The powder version - bacteria and baking powder - is more convenient because it can be stored easily and the microorganisms do not have to be constantly monitored. However, it has an expiration date and must be repurchased regularly.
Step 2. Ask friends and neighbors if they can give you some grains
If you know someone who lives in your area and who makes kefir, know that they are certainly willing to give you some of the live lactic acid bacteria for free. These microorganisms multiply in a very aggressive way, the people who own them are therefore always looking for a way to dispose of those in excess; contacting a friend is the easiest way to get fresh grains.
Step 3. Do an online search
There are directories (lists) of people who voluntarily give away or sell part of their grains. These lists are complete with name and address; if any of these individuals live nearby, you can get in touch and get some microorganisms.
Step 4. Join an online discussion forum
There are several forums, blogs, and groups of people that describe and discuss preparation techniques. You may also find ads from enthusiasts who are willing to donate or sell some grain.
Step 5. Buy kefir grains at a store
There are many resellers of this product and many of them also do home deliveries or shipments. Health food stores certainly sell them, while ethnic food stores are also able to offer them in numerous varieties. You can do some research online to find e-commerce sites that offer crops to make yogurt, cheese, kombucha, and many other fermented products as well.
Step 6. Handle them correctly
Once purchased, you need to treat them to keep them alive; the best way to proceed is to keep them in a jar at room temperature, adding a little fresh milk daily. You can also store them in the refrigerator for up to two weeks.