How to make sourdough starter
https://www.kingarthurbaking.com/recipes/sourdough-starter-recipe
https://www.theclevercarrot.com/2019/03/beginner-sourdough-starter-recipe/

15 Mistakes Most Beginner Sourdough Bakers Make
https://yewtu.be/watch?v=BJEHsvW2J6M


Sourdough Recipe

Flour (1000 grams total)
600 grams of all purpose flour
300 grams of whole wheat
50 grams of spelt flour
50 grams of einkorn

770 grams of water (77% hydration)
150 grams of starter-  (15%)
20 grams of salt (2%)