Container and mixing for my Sourdough Start
I am attempting a sourdough start for the first time, and am using Manuel's Sourdough Start recipe from The Laurel's Kitchen Bread Book. I am growing my start in a mason jar with the lid on and I have 2 questions:
1. Do I have to stir my start, or can I swirl it around the jar until it is mixed? Will the more rigorous motion affect the activity of the start?
2. Does my start need to "breathe?" If I have my start in a jar with the lid on, and swirl it twice daily to mix, that means I am not opening it often if at all. Is that a problem for the activity of my start?