So the 10 or so ounces of S189-34/70 slurry I have is in the mason jar for about 3 weeks. Reading about vitality starters, here's my plan. Rack off a half gallon of my chilled wort, oxygenate and pitch the slurry, gently mix and swirl. Pour into the fermenter the next day.
Do I chill the starter or should I leave it at room temp?