Wild rye sourdough is not rising
I'm attempting Jamie Olivers sourdough recipe (equal parts rye / water) my starter made a hooch! It bubbles etc so I know it is vibrant.
After I add the remaining rye flour to my starter to form the dough (2x the orginal amount) and knead it a good 5-10 minutes, and leave it.... nothing seems to happen! No rise is 12-15 hours!