Originally Posted by Matthewjscott
How long will a starter stay good in the refrigerator?
This is not best practice, but I left a 2l starter in my refrigerator covered for more than 4 weeks. I decanted to 600ml stirred it up and pitched into 45 degree wort (I know, but it was cold out) - four days later in a room at 68 degrees I have fermenting wort, six days the wort is fermenting strongly.
By the way I made the starter from 6 month old yeast (white labs).