I’ve been contemplating making my own yogurt for ages. The time was never right. I wasn’t organized, or finished off the yogurt, or didn’t have enough milk when the urge struck. But finally, I found my moment. Inspired by my friend from the Interwebs, The Zero Waste Chef, I decided to give it a go. I read lots of different recipes and methodologies. Most involved some convoluted method for keeping the yogurt warm without using a yogurt-maker. The beginning part was similar for most, but here’s what I did:
Heat milk to 180 degrees, stirring all the while. (I used about 3/4 of a 1L jar that I planned to used to store it in). Each expert differed on milk. Some wanted whole milk only. We drink 1% when we drink milk. I used that.
Now, cool it down to 110.
As I understand it, this helps break down the casein and makes the milk more “fermentation friendly”.
I poured it into an overnight-rated Thermos – the kind that is supposed to keep your food hot for a very long time. To this I added about 1/3 cup or 75ml of yogurt with active cultures – the kind we usually buy. Plain. No additives or preservatives. Then I called it, gave it a shake, and let it sit all day.
At dinner time I peeked in, with some trepidation. It looked yogurt-y. It was thick enough that it was hard to pour from the Thermos. It wasn’t as smooth as a commercial variety, but it definitely tasted like yogurt. This morning, some of it was breakfast. No sugar added, just fruit that was frozen in season, a sprinkling of cinnamon, and some chopped walnuts. Probably this was the most chemistry fun I’ve had since learning the orange juice volcano.