Heat the water in kettle or pan until it boils
*Tip: Make sure all the utensils are clean and dried to avoid contamination.
Add boiling water to the milk powder and mix until its frothy and no lumps remain
*Tip: Control thickness of yogurt by the quantity of water. Less the water thicker is the yogurt
For 1 cup add 1&1/2 cup boiling water.
Take any leftover yogurt and let it come at room temperature and add 2 full spoons in the mixed milk powder and mix thoroughly.
Put clean finger in the mixture and you should be able to keep the finger for 10-15 secs (it should be this hot not warm) and pour the mixture through a sieve in a thermal box for food.
*Tip: If you feel the temperature became low while mixing, remove the mixed milk and heat it in the oven or on gas a little and pour back in the thermus. The temperature needs to be a little hot in the box at start, because overtime the heat will be lost.*Tip: The thermos lunch box for soups (wider mouth) that keeps hot for 12 hrs. (12 hrs is better than 5 or 6 hrs ones)
Preheat the microwave for 2-5 mins and keep the box in it for 5-8 hours or overnight.
*Tip: If it seems still liquid at the end, add a little boiled water and keep it back in preheated microwave for 2-3 hours.
Store it in fridge for a week.
