Making yogurt is simple and easy. Aside from the fresh milk you'll need a sweetener (if you want it sweet), thickener and live yogurt culture.
To make 1 liter of yogurt all you'll need are:
1 liter of fresh milk
1/2 cup condensed milk
50 g plain yogurt
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condensed milk, fresh milk, plain yogurt (from top clockwise) |
Here, I'm using the condensed milk as a sweetener and thickener. Condensed milk is made up of milk solids and sugar.
For thickener, you can also use gelatin, agar-agar or milk powder.
Sugar is a perfect sweetener as it feeds the yogurt bacteria, promoting them to multiply and gives the yogurt its tart taste. Honey is not recommended because it will make the yogurt runny and can offset the effects of your thickener. However, yogurt tastes great with honey so you can add it when the yogurt is ready for eating.
Heat the milk up to 180F while heating continuously stir the milk to prevent it from scalding.
Take it out of the heat and pour in the condensed milk. Keep on stirring for a minute or so to make sure that it gets evenly incorporated.
Wait for its temperature to cool down to 110F.
Then add in the yogurt. Make sure that the temperature is at 110F, a higher temperature can kill the live bacteria in the yogurt. We will use the live bacteria contained in our store bought yogurt to start our culture. Yogurt cultures can also be bought at any health stores in your area.
Next, we'll need to incubate the milk mixture in order to promote the growth of yogurt bacteria for at least 6 hrs.
Take an ice box and cover the inside with muslin.
Put the milk mixture inside the ice box and surround it with glass bottles filled with hot water. This will keep the milk warm enough to maintain its 110F temperature.
Cover and set aside for 6 hours.
Occasionally check the mixture and make sure the temperature does not go down below 100F.
After 6 hours or so the yogurt is done. If you want it a bit more tart and thick, leave it in the incubator for a few hours more. When warm the yogurt may be a bit runny but when chilled it becomes thick and creamy.
NOTE: For recipes that calls for unsweetened yogurt, instead of using condensed milk use 2 tablespoons of powdered milk.
Enjoy eating your home made yogurt. Now you can eat all you want without spending too much.