Yeast starter

[Brewslikeaking]

What's the smallest gallon batch size you would need a yeast starter for?

 

[FinchSCF]

Theoretically there shouldn't be a "minimum". A starter is mostly about pitching healthy yeast, and doing it right gives you the ability to pipe in oxygen and feed them nutrients before they start the real deal.

 

[JonM]

Take the yeast package's production date, calculate viability using an online calculator like Mr. Malty then play with the batch size until it says "no starter needed."

 

[brewkinger]

I think I would at the very least make a starter for any size batch.
The small cost of DME, water and time to prepare the yeast for their mission is worth it.
part of my brew day inherently involves making the starter a couple of days in advance.