Hello everyone just joined wrote something yesterday but had trouble with my pictures so lost it !!. Baked my first sourdough last week in my relatively new brick oven i built very pleased with the results tasted good. Crumb had large holes at the top of the loaf but small at the bottom ? any ideas anyone ? The dough was hydrated at 65%. Im making some more dough at the mo to bake tomorow. I will post some pics when i get them sorted.