Using Stater Beer to Top UP

[jready]

I have three long term sours that I started last month. I used mixed cultures in all three. I do not plan to move them to secondaries for several months if ever.

I have seen that a lot of people top up to give less surface area for oxygen to settle. I have just built a four liter starter for another beer and was considering using the beer that I would normally decant off the starter to top up is this a decent idea?

 

[kh54s10]

I have no experience with sours. But, I wouldn't use a starter "beer" in any beer. It is usually un-hopped, fermented at less than ideal temperatures. And is just not something that I would intentionally use. Though in small starters I sometime pitch without cold crashing and decanting.

 

[RPh_Guy]

I agree; I wouldn't use it. Adding heavily oxidized and oxygen-saturated beer isn't what you want.

 

[jready]

Both great points I will just dump it and wait till I have finished beer to use. Thanks!