Easy to over mix with a Bosch?
I'm still getting to know my Bosch and was wondering if anyone else with a Bosch could weigh in on mixing time:
Today I mixed a 67% hydration sourdough (about 5-6 pounds of dough, KA patent flour, 5% rye). Moving down my hydration from 73%--which my Bosch was not kneading well---I was hoping I could get a moderate level of gluten development and then reduce my S&Fs from 5 to 2. After a 20 minute autolyse, I mixed the dough for 2 minutes on speed 1 to incorporate salt and stiff levain, and then for 4 minutes on speed 3. At this point the dough was already getting sticky and torn, but as an experiment I decided to mix for another 2 minutes to see if I was misinterpreting the dough.
As a side note: I've noticed this behavior before, the dough starts to get torn up and sticky after only a few minutes, and that has driven me to scale back my mixing times. But with only moderate success in scaling back my mixing times (to 1-2 minutes after an autolyse), I thought that I may as well experiment by lengthening my mix this time in order to see if I was simply undermixing in the past.
Anyway, so after two more minutes on speed 3 (6 minutes total) I felt I could safely conclude that I was over mixing my dough. It was even stickier and felt almost as wet and loose as a 75% hydration dough (this one was 67%).
Has anyone else had a problems with over mixing with their Bosch? I've read some say that 6-10 minutes is the amount of time it takes for them to get good development. I was surprised that I could over mix with 6 minutes (granted with an autolyse preceding it). I am going to experiment further by mixing without an autolyse, but I was hoping some other Bosch owners could give me a sense of how much mixing they typically knead for their breads with and without autolyses.