sodium benzoate and potassium sorbate- any effect on lacto?

[SanPancho]

given a TON of juice for free. but already includes k sorbate and Na benzoate as preservatives. no bueno for yeast, but what about souring with lacto?

 

[RPh_Guy]

LAB will produce a geranium off flavor in the presence of sorbate.

 

[SanPancho]

LAB will produce a geranium off flavor in the presence of sorbate.

Damn. Not something that sounds appealing.

what if I was to instead use the juice as a final sweetener, say after the lacto had already soured the beer? Do you know if that still happens? Or only when it’s metabolically active?

wondering if I could use it to sweeten after lacto has soured, and maybe dry hop a bit for few days, then add it to sweeten?

 

[RPh_Guy]

what if I was to instead use the juice as a final sweetener, say after the lacto had already soured the beer? Do you know if that still happens? Or only when it’s metabolically active?

Adequate sulfite levels prevent the off flavor.

I'm not sure about hops. It might work.