BudzAndSudz
Well-Known Member
I add them right to the keg, then rack onto them. I'd suggest boiling up about 1/4 cup of water, then let it cool and add the spice once it reaches 180. The vanilla extract I use is literally just vodka with vanilla beans that have been soaking for a few years, so it is sterile by default.
I always just add the spices to an ounce or so of bourbon or rum. That way the heat doesn't volatilize any of the aromatics, and the rum is a nice, but subtle, flavor addition that fits very well.