bread making question

[IsaFrench]

I offered some milk kefir grains in a group I know

someone asked me if they can use milk kefir instead of buttermilk when making bread

I have no idea what to reply

could someone tell me yes/no

... and why (but just the basics for my general curiosity, am not going to be making bread anytime soon)

thanks in advance

[BedHead]

I have no idea why but I use raw buttermilk/yogurt/kefir/milk interchangeably in all my baking including in bread. I do stuff like that on a regular basis in my kitchen - experiment like that The flavor differs but that's about it. They all have additional organisms in them that could potentially affect the rising time too I suppose.

[IsaFrench]

thank you very much about your answer !