So, with our one litre of milk and a small carton of fresh, live, natural yogurt ready for action, this is what we do....
We start by adding about a dessertspoonful of the fresh yogurt to the yogurt maker's pot. Then the milk is added and lightly stirred.
This is then put into the electric yogurt maker and left for 24 hours. The maker we use is a bulk one from Lakeland and here is a link to their site.
After this time, the yogurt starter has worked its magic on the lactose in the milk and we have a lovely pot of home made yogurt.
To make it thicker, it can be left to strain through a sieve lined with muslin /jelly bag which makes a Greek style yogurt.