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Making Yogurt from Raw Milk: (Directions for Greek Yogurt Included)

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Preview: Learn about making yogurt from raw milk with this picture tutorial. The instructions are for making regular yogurt and Greek yogurt.

No cows hang out in my backyard or the back forty. Raw milk is not available commercially in my town, but my son and daughter-in-law are in love with yogurt made with raw milk. They encouraged me to try it.

I may be entering treacherous territory. Recently I’ve had several inquiries about making Greek yogurt with raw milk (unpasteurized milk) on my Homemade Greek Yogurt post, so I decided to try it just so I can say I did.

homemade Greek yogurt, raw milk, strained

Please note:  As a home economist, I’m not advocating adding raw milk to your diet. It’s a controversial practice not advised by the USDA. I encourage you to do your own research.

Why do I need to heat the milk?

I have read that some people don’t heat their raw milk to 175 degrees in the beginning either because they want to save time or because they don’t want to kill certain bacteria. After doing side by side experiments, I have concluded that whether raw or pasteurized, milk which has not been heated to 175 degrees results in a rather thin yogurt. (Please see this recent interview with my daughter-in-law for her experience making yogurt without first heating the milk.)

High heat helps to unravel the proteins which aid the yogurt-making bacteria. I don’t like to drink my yogurt, and I’m not comfortable letting unheated raw milk sit at 100 degrees for 12 hours. So, I stick with the method that calls for high heat, then a cool-down, before adding yogurt starter.

As it turns out, making Greek yogurt with raw milk is exactly the same process as pasteurized milk. What follows is a condensed tutorial. If you still have questions, check out my original post on making yogurt for more details.

Making Greek yogurt with raw milk:

Heat the milk to 180˚F.

a clean, microwave-safe bowl and milk
Use a clean, microwave-safe bowl like this 2-qt Pyrex dish.
heating raw milk
cooling milk in a bowl of ice
Allow the milk to cool on the counter or speed the process by setting in ice.

Second:

Allow the milk to cool down to 100-110˚F.

taking the temperature of the milk

Third:

Add a tablespoon of starter per quart of milk.

adding starter

Fourth:

adding starter
Whisk well, cover loosely, and set in a warm place. (100-110 degrees)

Once you prepare your yogurt by heating it, cooling it, and adding a starter, find a place in your house to incubate your yogurt.  See this post for more ideas about how to accomplish incubation.

DO NOT DISTURB!!!!!!

If you peek too often, you will let some of the heat escape.  If you move or stir the milk mixture, the incubation process will stop and no more thickening will occur.

After 10-12 hours, go to the next step. If you are not available at that time, it is OK to let it incubate up to 24 hours based on my own experience.  In general, the longer you incubate, the tangier the yogurt.

See the pictures below for an example of what your yogurt should look like when it has finished incubating.  We made three batches using different milk in each.  The pasteurized skim milk was the thickest followed by the raw skim milk. The thinnest yogurt was the raw whole milk. 

comparing yogurt, pasteurized milk was the thickest
Pasteurized nonfat milk was the thickest.
comparing thickness of skim raw milk
Raw skim milk was thinner.
comparing thickness of raw whole milk
The raw whole milk was the softest.

Fifth: How to make Greek yogurt:

You could eat your yogurt at this point– once it has been chilled, but if you prefer Greek yogurt as I do, proceed.

straining raw whole milk to make Greek yogurt
Use cheesecloth or a coffee filter to line a colander or sieve.
whey collected from yogurt
Whey drained from yogurt
whisking yogurt
After straining, use a whisk to whip the yogurt until it’s smooth.
showing shiny yogurt after whisking
See how smooth and shiny our yogurt turned out. It will be even thicker when chilled.

If you chill the yogurt before straining, it’s possible you won’t need to use a cloth to line your strainer if your strainer is fine enough.  After 1-3 hours (your choice, depending on the yogurt itself and how thick you like it),  set the drained whey aside for other purposes and whip the remaining yogurt with a whisk.  Use some muscle behind that whisk, and you will be rewarded with creamy yogurt.

Add flavorings before or after chilling.  Enjoy!


If you run into difficulty, leave your question in the comment section.

Other posts pertaining to making yogurt:

Yield: 8 servings

Making Greek Yogurt with Raw Milk

Making Greek Yogurt with Raw Milk

A guide to making your own Greek yogurt at home using fat-free, 1%, 2%, or whole milk.

Prep Time 20 minutes
Cook Time 6 hours
Total Time 6 hours 20 minutes

Ingredients

  • 1 quart unpasteurized dairy milk )
  • 1 tablespoon yogurt (commercial or your own homemade)

Instructions

  1. Fill a Pyrex 2-qt microwave-safe bowl or pitcher with milk. Alternatively, pour milk into a heavy-duty pot to heat on the stove.
  2. Heat in the microwave until bubbles begin to appear around the edge. The temperature should reach 170-180˚F after you stir it. (In my microwave, it takes about 11 minutes on HIGH). Check at 9 minutes.
  3. Allow your milk to cool until the temperature drops to between 100-110˚F.
  4. Whisk in fresh unflavored yogurt as a starter. You may use yogurt from a previous batch of your own homemade yogurt.
  5. Cover the milk and place it in a warm environment where the temperature stays around 100-105˚F.
  6. Allow the inoculated milk to incubate for 4-8+ hours or until set.
  7. At this point, you could chill the yogurt and eat it as is. Or you can decide whether to pour off the whey or stir it back in. Straining yogurt to make it thicker will result in Greek yogurt.

From regular yogurt to Greek yogurt

  1. Very carefully pour yogurt into a bouillon strainer or chinois. If the mesh is fine enough, you won't need to use a cheesecloth or paper towel. Or use a Kleynhuis pouch or a commercial size paper coffee filter inside a cheap strainer or colander.
  2. Let yogurt sit in the strainer until the yogurt is reduced by approximately a third. Time will vary according to the thickness of the yogurt out of the oven and your own preference regarding texture and sourness.
  3. Empty whey from the batter bowl and pour yogurt out of strainer back into the original bowl. Use a good whisk to beat until smooth. Thin with milk or leftover whey if yogurt is too thick.
  4. This is a good time to add any flavorings or sweeteners if desired.
  5. Chill.

Notes

Nutritionals are only an estimate. Numbers will vary according to how much you strain your yogurt.

Nutrition Information:

Yield:

8 servings

Serving Size:

1

Amount Per Serving: Calories: 151Total Fat: 8gSaturated Fat: 5gTrans Fat: 0gUnsaturated Fat: 2gCholesterol: 25mgSodium: 107mgCarbohydrates: 12gFiber: 0gSugar: 13gProtein: 8g

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