Two temperatures decide everything. Heating to 180°F denatures the proteins so the set is thick rather than grainy — skip it and you get drinkable yogurt. Cooling to 110°F before adding the culture matters just as much, because anything hotter kills the bacteria you're paying for.
The ratio1 quart milk → 180°F → cool to 110°F → stir in 2 tbsp live yogurt → hold warm 8 hours.
By Vince Gonzalez · Published July 2026 · Sourcing verified 5 Jul 2026
Prep20 min
Cook8 hours culture
Makes1 quart
CuisineBasics
Cost$
VegetarianGluten-free
Contains dairy
Make it vegan: use plant milk, oil, or a vegan cheese for the dairy.
The Ingredients — and where to get them
Cook for1quart
Whole milk
A quart. Whole gives the thickest set; skim works but stays loose.
Heat to 180°FSlowly, stirring so it doesn't catch on the bottom. Hold it there five minutes. This is the step that decides the texture.
Cool to 110°FA sink of cold water speeds this up. Use a thermometer — 110°F is warm to the touch, not hot. Too hot kills the culture and you get milk in the morning.
Temper the starterWhisk the yogurt with a cup of the warm milk first, then stir that back into the pot. Adding it straight in makes lumps.
Keep it warm eight hoursOven with the light on, a cooler with a jar of hot water, or a wrapped pot in a warm corner. It needs a steady 105–110°F and to be left completely alone.
Chill before judgingIt sets further in the fridge. Four hours minimum before you decide whether it worked.
Strain for GreekThrough cheesecloth for two hours and it becomes thick Greek yogurt. The liquid running off is whey — good in bread and smoothies.
Make it yoursStir in raw honey and vanilla extract after it sets, never before. Fruit preserves at the bottom of the jar. Save two tablespoons every time and you never buy a starter again.
Can you make How to Make Yogurt in an air fryer? — Not needed
No cooking needed here — this one comes together without heat, so the air fryer sits it out.
Can you freeze How to Make Yogurt? — Yes
Yes — cool it, portion into airtight containers, and freeze; thaw in the fridge and reheat.
Can you make How to Make Yogurt ahead of time? — Yes
Yes — it needs the chill time to set, so making it ahead is the whole point.
Is How to Make Yogurt gluten-free? — Yes
Yes — nothing in this recipe as written contains gluten. As always, glance at the labels on any packaged items (broth, sauces, chocolate), since brands vary.
Is How to Make Yogurt vegan? — Vegetarian, not vegan
It’s vegetarian but not vegan as written — it has dairy. Make it vegan: use plant milk, oil, or a vegan cheese for the dairy.
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