My sourdough starter is rising faster than instant yeast, normal?
Yesterday i have taken a very small amount of instant yeast (less than 0.5g) mixed with 50g water and 50g bread flour. I want to see how the rise could be. The mixture had risen for almost 5 times in volume.
This afternoo, after i have done the feeding for sourdough starter, I as well (for fun) feed the instant yeast mixture by scrapped of half of it and added 50g water and.50g flour. 2 hours later, i have found that the starter is rising faster than the instant yeast mixture. I am feeling very strange about it.
According to what i have read about sourdough starter, the rising is usually taking longer time comparing to those commercial yeast. Does anyone have any ideas how could my starter rise faster than instant yeast?
P/S: my starter (100g) is fed with 50g water and 50g flour.