This tutorial was originally published on my old blog but I thought I'd move it over.
While I still buy those outrageously expensive individual cups of yogurt on occasion, I almost always have a quart or two of homemade yogurt in the fridge. I use it mostly in fruit smoothies. Some frozen fruit and some yogurt, blended up, makes a delicious and nutritious breakfast drink. It is super easy to make your own yogurt, for a fraction of the cost of store-bought.
Things you will need:
Milk
Saucepan
2 tbsp plain yogurt (with active cultures) per quart of milk
candy or instant-read thermometer
quart jars and lids
small cooler
dish towels
Heat up the milk in the saucepan until it is 180 degrees.
Then move it off the heat and let it cool until it is about 115. Yogurt needs to incubate at 108 degrees, so by the time you get the starter mixed in and the milk poured into the jars, it will be the right temperature. Put your plain yogurt into a bowl. (the picture shows the jar)

Spoon a little of the warm milk in to bring the yogurt's temperature up. Then pour the yogurt mixture into the milk, stir it thoroughly, and pour it into your jar(s).

Put the lid(s) on loosely. Put the jar(s) into the cooler, pack the extra space with dishtowels,

then put the lid on, and let it sit for 5-8 hours. Voila! Homemade yogurt, so little work!
What kinds of milk should you use? Any kind. The higher the fat content, the creamer and richer the yogurt. I recently have been making whole milk yogurt because it makes the smoothies very rich and filling and almost like milkshake. But I also make skim milk yogurt from powdered milk. When making it with powdered milk, I often add extra powder to add extra protein. The advantage of using powdered milk is you don't need to heat it up and cool it. I mix the powder with 120-degree water and proceed as usual.
To flavor your yogurt, stir in some jam, or some vanilla or lemon extract and a little honey or sugar.
Want organic yogurt? Use organic milk. It makes your cost savings even more!
When you get to the end of the jar, save the last 2 tablespoons for your next batch. It's called chain yogurting. You can chain yogurt for a long time before the yogurt won't set up well. If you buy a big container for your starter, you can freeze the excess in ice-cube trays and thaw them when you need fresh starter.
**edited to add**
I have also been successful at culturing vanilla yogurt. To the quart jar of starter, I add 3/4 to 1 cup sugar and 1 tbsp vanilla extract, then add the warm milk as directed above. This eliminates the step of stirring in vanilla and sugar to a bowl of plain yogurt and it doesn't get as runny
Comments
What a great idea! I have
What a great idea! I have never thought of making my own yogurt, I didn't even know it was possible without special equipment. This is a great explanation too, so I'll actually be able to replicate it! Yogurt, especially organic, can be so expensive. How long does the yogurt last before it goes bad? And does it have to be a small cooler? I have a larger one and I'd rather not buy a new one. Thanks!
This is a great post and I
This is a great post and I am probably going to try it but I have a few questions. First of all, how do you keep the milk from curdling when you heat it up? That would be my worry, that I would burn the milk. Also, what are the benefits of culturing the yogurt? Other than that, thanks for the cost saving recipe.
answers
The milk doesn't curdle when you heat it up because it isn't sour. I heat it over medium to medium high heat and stir often. It will stick to the bottom of your pan if you don't stir it while it's heating. Culturing it is what turns the liquid milk with the yogurt started stirred in, into yogurt you can eat with a spoon. Yogurt is good for digestion because it's full of good bacteria.
I enjoy homemade yogurt. I
I enjoy homemade yogurt. I don't fill up my cooler with towels. I just wrap the dish towels around the jars and it works fine in my big old cooler...lol I've let it sit over night always afraid to open the cooler to early..I guess I shouldn't worry if you do it in 5-8 hours....Good to know!! Thanks for posting!
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