How big should my yeast starter be?!
Answers: I am pitching to a high gravity beer of 1.072. This is for a strong belgium ale. I have read I should use a 1 gallon (3.7 litres) starter! This is very large. Does anyone have experience with this or would 1 litres be enough? I was also only thinking of pitching the yeast slurry from this starter and discarding the starter beer.
1 gallon sounds like it would be more than you need. If you are using the 30 L fermenter that you talked about in your previous question, 1L starter should be plenty. And yes, you only need to use the yeast slurry as a starter. That's where most of the yeast cells are.
Assuming this is a 5 gallon batch, a 1 gallon starter seems like a lot. I've certainly made beers that big and bigger with a 1-liter starter with good results.
And yeah, pitch just the slurry. The beer from a 1-liter starter probably won't be enough to alter the taste of your recipe much, but it's certainly not adding anything you need.