I know this has been discussed but I can’t find the posts for some reason,,, but,,, I want to include some vanilla in my next batch of reds. I know you can go overboard quickly from past info,, so,,,, I need a recommendation on how much to add for a noticeable but not overwhelming difference in a 6 gallon carboy. While answering,, would someone clear up the question of using just the bean casing, or with the beans, and is it necessary to soak them in vodka for an extract? For that matter,,,, can I use real, (not imitation) extract?