Just built a stir plate and getting into making starters, harvesting yeast ect,, Is it necessary to step up a yeast starter- 1L,2L ect.. or can you just make a 1.5L or 2L yeast starter from a single vial?? The reason why I'm asking is I plan to harvest yeast from my starters from here on out for future use.
thanks in advance
thanks in advance