I made a starter last night around 9 p.m. I bought a new stir plate and was wondering how long do you leave it sit 24 hours-48 hours. And can you leave it to long?
With my stir plate it seem all is done within 24 hours and maybe much less.
If you're making it more than a few days before brewing I would let if finish and then put in the frig, take out when you start brewing and it will be room temp by the time your done.
Unless your stepping it up then pour off beer and add wert.