Cacao nibs:bourbon or vodka?

[damiongrimm]

I'm currently brewing a 5 gal bath of vanilla Mocha imperial stout, estimated Abv to be between 9-11%(had a few temperature fluctuations so we shall see what the FG clocks in at when I rack into secondary today). What my big question is here is this: is about to add the cacao nibs into the secondary, but i can decide whether to soak them in vodka or bourbon. I know the flavor will be mild, if any, and it's more for sterilization purpose than anything else. Any pros or cons that anyone has for either?

 

[CA_Mouse]

I've used vanilla vodka to soak nibs in for an Imperial Chocolate Vanilla Porter and straight vodka the other times I've used nibs. I soaked mine during the entire fermentation period and added both (vodka and nibs) into the keg when I racked the beers over.