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How to Make Yogurt at Home

Homemade yogurt is easy and inexpensive to make. Follow this step-by-step recipe to get started.

By Tom Meade


Homemade yogurt is easy to make at home and contains healthy bacteria, called probiotics. Photo courtesy iStockphoto/Thinkstock (HobbyFarms.com)
Courtesy iStockphoto/Thinkstock
Homemade yogurt is easy to make at home and contains healthy bacteria, called probiotics.

Making homemade yogurt with cow’s milk, goat’s milk or soy milk is a breeze and a great way to save money on this delicious dairy product. The results are as consistent as you want to make them, despite an enormous number of variables in the process. Like all other fermented foods—including beersauerkraut and cheese—you’re working with a starter product and bacteria that do the work of fermentation, as well as time, temperature and equipment.

Fresh, raw milk from a single animal can vary tremendously from breed to breed, from season to season, and from pasture to pasture, depending on what the animal is eating, says Ricki Carroll, author of Making Cheese, Butter & Yogurt (Storey Publishing, 2003). To produce consistent fermented dairy products, she teaches her students that it’s critical to use clean, well-rinsed equipment and ingredients from known sources, as well as to be scrupulous about watching the thermometer and the clock.

You can alter the flavor and consistency of your homemade yogurt through your milk selection. Buying one brand of organic milk from the grocery store produces yogurt that is consistent from batch to batch. Fat-free milk works well, too, and raw milk also works as long as the animal is free of antibiotics. To make thicker yogurt, add 1/4 cup of powdered milk to the liquid milk you use.

The magic yogurt production comes during fermentation. You can buy starter bacteria from a cheese supply store or use 3 tablespoons of organic yogurt with live cultures. Widely available Stonyfield Farm organic yogurt contains six species of bacteria; other brands of organic yogurt are also available regionally.

You will only need two pieces of special equipment to make homemade yogurt: a dairy thermometer, which costs about $10, and an incubator or “yogurt maker.” Non-electric yogurt makers, essentially insulated buckets, cost from $35 to $48, and electric yogurt makers start at $15, though some people will incubate the yogurt in a low-temperature oven. The rest of the yogurt-making equipment should be readily available in your kitchen.

Follow the simple step-by-step recipe below so you’re never in short supply of this healthy, fermented dairy product.

Recipe: Homemade Yogurt

Ingredients

  • 1/4 cup powdered milk
  • 4 cups cow’s milk
  • 1 packet powdered starter or 3 T. fresh yogurt containing live cultures

Preparation
Dissolve powdered milk in cow’s milk. In a double-boiler over low heat, heat the liquid to 180 degrees F, using a dairy thermometer to check temperature. Turn of burner and cool milk to 116 degrees F, and add powdered starter or fresh yogurt containing live cultures.

Cover mixture and place in incubator to maintain temperature of 116 degrees F  for six hours, until it sets up to consistency of thick cream.

Refrigerate yogurt for up to two weeks, reserving 3 T to start your next batch.

Yogurt Variations:

  • If you’re using goat’s milk, add 1 drop of rennet (available from a cheese-making supplier) to 4 T. unchlorinated water, then mix the diluted rennet into the milk, and continue with the cow’s milk process.
  • If you’re using soy milk, heat the liquid to 110 degrees F, add the starter, and let it incubate at 100 degrees F until it sets up as yogurt.
  • For flavored yogurt, mix in honey, maple syrup or fruit just before serving.

Recipes Using Yogurt
Put your homemade yogurt to use in recipes like these.

About the Author: Tom Meade is a writer, beekeeper and vegetable gardener in Rhode Island.

 

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How to Make Yogurt at Home

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Reader Comments
Thank you for your recipe. Will attempt to make my yogurt.
Sumanthiran, International
Posted: 3/14/2014 2:46:51 AM
I love our homemade yoghurt.
Galadriel, Lothlorien, ME
Posted: 3/17/2013 12:02:35 AM
I've made raw milk yogurt both ways and found that heating the milk to 160F for then rapid cooling makes for a thicker yogurt. I know it seems like a waste of beneficial microbe. If you don't pasteurize the milk then save the whey for making bread.
Dave, Tully, NY
Posted: 2/20/2013 8:36:17 PM
Is it necessary really necessary to pasturize my raw milk to make yoghurt? It seems like such a waste of health giving nutrients.
Lee-Anne, Langley, BC
Posted: 2/20/2013 7:30:13 PM
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