"Yogurt!"Well, this is the case no longer.
When back in Australia recently I found a commercially available yogurt maker, which is basically a 1L plastic container which fits well inside a thermos. I also purchased a couple of the commercial yogurt culture sachets which you mix with water and put inside the plastic container. Then you pour boiling water into the thermos and put the container in. The container is held above the hot water so that mixture warms up. If it were to go in the hot water, it would get too hot and kill the bacteria that produce the yogurt.
I only bought a couple of the commercial sachets having a vague idea that you can just use powdered milk and a spoonful of the last yogurt to keep propagating the bacterial culture that produces the yogurt.
Well, it is all you need! Now we have beautiful yogurt everyday, all for the cost of 1L of milk made up from powder (per day). Fantastic.
The yogurt maker was Sophie's birthday present and I thought she might enjoy making it. Probably she would, but it has been her father that has become the yogurt whiz. It took a couple of weeks of playing around to get conditions just right, but he seems to have it working perfectly now.
Yum, yum, yogurt!