There’s no sign of life from the starter that’s been spinning for a day or two on the stir plate at 21℃, so I’m going to throw it in and see what happens. The other bucket (with dry-pitched M02 around the same sort of time) has been bubbling away nicely, so I’m not sure what’s up with this starter. If nothing happens I’ll dry-pitch some more yeast on top, but let’s give it a couple of days.