Homemade Buttermilk! | Health
Though many people may not know it the process of making your own buttermilk at home could not be more simple and easy! Start by saving a few tablespoons of buttermilk from the store. Then scald (heat to 180) about a quart of fresh milk and let cool to 80-90 degrees. Stir in the few tablespoons of old buttermilk and then pour everything into a sterilized jar. A mason jar works fine that you have filled with boiling water and then emptied or a glass jar from a local dairy. Set this aside undisturbed overnight and in the morning the live cultures in the old buttermilk will have taken up residence in the new milk, creating what essentially is a soft yoghurt. You'll know because the milk will appear to have gelled. If it has not gelled yet then leave it out for a few more hours until it does, then label it with the date and put it in the fridge. This can be done over and over again always saving a few tablespoons from the old batch so always save a little leftover each time! However do this within about two weeks. The cultures are after all alive and won't live forever! Try it!