I would like to add vanilla extract to half of my latest porter brew. I have pure vanilla extract from Mexico (quality stuff) but it doesn't contain any alcohol which I've read on here acts as a sanitizer. I also have imitation vanilla extract containing alcohol, but from what I've read on here using pure extract would yield better results. Would it be okay to add an ounce or so of the pure extract to the bottling bucket as is or should it be sanitized first? If so, how to sanitize?