It is very easy to create your own sourdough starter. All you need is some good quality whole-wheat flour and water and a little patience. I like to use either filtered water or boiled, cooled water.
What’s in a Starter?
There are two microorganisms that combine to make sourdough bread. They are yeasts and lactobacillus bacteria and luckily for us these exist all over the place- even in your kitchen. You also find an abundance of dried yeasts in whole-wheat flour, particularly organic.
How to make a starter
To make your starter place 1 tablespoon of flour and 1 tablespoon of water in a clean jar. Mix together and sit a loose fitting lid on the jar. Put your jar in a warm spot. The next day add another tablespoon of water and flour and mix.
Do this every day for a week. After a week you should have a nice bubbly mix which has a pleasant sour smell.
You have created a local starter you can use to make your very own sourdough bread.