Why Panera's Sourdough Bread Is Such A Big Deal - Tasting Table
Briefly

"...what makes this Panera menu item so special is actually the dough - its 36-year-old sourdough starter, to be exact..."
"Sourdough starter is actually a living thing; it's a mix of flour and water that, if nurtured properly, turns into a growing, bubbly, bread ecosystem..."
Read at Tasting Table
[
|
]