Is prepared in 2 stages. First preparing a mother starter. Boil 0,6 liters of milk. Cool it to a temperature of 36-37 degrees. The contents of one capsule of Florida filus (can Narine, Acipol etc. bifidobacteria) dissolved in milk and mix thoroughly. Recommendations for the mix - pour in a Cup of milk and add 1 capsule of yeast. Then, pour in the remaining milk, mix well. Pour into 4 jars and put in yogurt maker or a thermos. Turn on the yogurt maker and thermos are well wrap and put near a heat source. Went to the fermentation process. Starter should be prepared at least 20 hours and not more than 24 hours, otherwise it will begin to separate serum. In the process of making the masterbatch leaven must 3 times to turn on the yogurt maker, without opening the cover. For example. Put the starter in the yogurt maker at 12 o'clock. If the yogurt maker with a timer, it will shut down the machine in about an hour. If without a timer, manually turn off the beeping sound. After 6 hours, i.e. 18 hours again, turn on the yogurt maker. It again will turn off (or disconnect themselves with sound). And last turn on the yogurt maker in 23 hours (don't forget to turn off if no auto-off). In the morning at about 8-9 already possible to get ready the starter from the yogurt maker and into the fridge. It can be used within a few hours. Shelf life of starter in the refrigerator for 7-10 days.

Here is the parent yeast. It is absolutely not sour.

The preparation of the drink. To prepare the drink acidophilus will also have the yogurt maker or thermos. For 1 litre milk take 2 tbsp of starter. 1 liter of milk to boil (if you want thick yogurt, let the milk boil 5 min) milk to cool and mix with sourdough (recommendations on mix - pour in a Cup of milk and add 2 tablespoons yeast. Then, pour the rest of milk, mix) and 2 tablespoons powdered milk (dry milk is not a mandatory component) blender. Pour the whole lot into a thermos, or distribute jars of the yogurt maker and leave for 8-10 hours. Remove in the fridge. Once in the fridge to cool - it turns the normal thick yogurt. To prepare the drink should only be used working starter! The shelf life of the drink in the refrigerator (at 5-8 C) not more than 3 days. And now enjoy a pleasant and healthy drink!