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How to make acidophilus yogurt
Combine 4 cups (950ml) of milk and 3/4 cups (120 g) of powdered milk (if not using whole milk) in the saucepan.
Set the burner to medium heat and place the saucepan on the burner.
Whisk the mixture constantly to keep it from sticking to the pan.
Gradually heat the milk to 180 to 190 degrees fahrenheit (82 to 87 degrees celsius). Determine the temperature by inserting the instant read thermometer in the milk periodically.