Collecting a lacto culture after kettle souring

[TAK]

I recently did a quite pleasant kettle sour project, where I did the souring in a keg before transferring back to a kettle. I'm getting ready to do the same thing again, but this time I'd like to try and collect some lacto culture before boiling the batch. Since I'll be souring in a keg, I can just collect the first runnings from the bottom. I'm wondering though, is the bottom going to be any better concentration of lacto than the keg as a whole; will it have flocced much? Would it be worth cold crashing?

 

[TAK]

bump....


Any thoughts on cold crashing to get lacto to flocc, or not necessary/helpful?

 

[Agate]

I think I'd just save a quart or so in an air locked bottle. Lacto has such poor flocculation that it should give you plenty of cells to keep the culture going. Don't bother cold crashing.

 

[TAK]

Cool, thanks.