Homemade Yogurt
Making yogurt at home requires no special equipment beyond a thermometer and a pot. It is a slow process of transformation that turns plain milk into a dense, tart staple.
Temperature is the only non-negotiable factor.
If the milk is too hot, you kill your starter; if it is too cold, the bacteria won't wake up. Use a digital probe thermometer for accuracy.
- Heavy-bottomed saucepan
- Digital thermometer
- Glass jar
- Clean kitchen towel
What goes in.
- 4 cupsWhole milk
- 2 tbspPlain yogurt with live cultures (the starter)
Steady Warmth
The bacteria need a constant, draft-free environment between 105°F and 115°F to thrive. Wrap your jar in a thick towel and tuck it inside an unlit oven or a cupboard.
The method.
Heat the milk
Pour milk into the saucepan over medium heat. Bring it to 180°F, stirring occasionally to prevent the bottom from scorching. This denatures the proteins, leading to a thicker texture.
Cool the milk
Remove the pot from the heat and let it cool until it registers 110°F. Do not rush this, or you will ruin the culture.
Inoculate
Place the starter yogurt in a small bowl. Whisk in a quarter cup of the warm milk until smooth, then stir this mixture back into the main pot.
Incubate
Pour the mixture into a clean glass jar. Seal it, wrap it in a towel, and place it in a warm, draft-free spot for 8 to 10 hours without moving it.
Set and chill
Once the yogurt has thickened, move the jar to the refrigerator for at least 4 hours. This stops the fermentation and firms the set.
Other turns to take.
Greek Style
Once the yogurt is chilled, pour it into a colander lined with cheesecloth and let the whey drain for 2 hours to achieve a thicker consistency.
When it doesn't go to plan.
Always save two tablespoons of your current batch to act as the starter for your next one.
If the yogurt is too tart, you likely left it in the incubation phase too long.
A heavy-bottomed pot is essential to keep the milk from sticking and burning during the heating phase.
The ones that keep coming up.
Why is my yogurt still liquid?
The milk was likely too cold when you added the starter, or your starter did not have active live cultures.
Can I use low-fat milk?
Yes, but the yogurt will be thinner. Whole milk provides the most structure and creaminess.
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