Brewed a really nice American Stout last night. notes of chocolately roasted coffee all throughout. the predicted abv was 6% according to kit which i followed to a T, but as i was taking my OG i dropped the hydrometer and it broke. My question is, similar to dry hopping (im not going to dry hop) what are some post fermentation additions some people do. And, since they most likely are not antimicrobial, how can I sanitize them before adding to my carboy? Was considering cocoa and/or whole coffee bean. It's a 5 gallon batch and I don't want to over do it on any flavors, so quantity recommendations are welcome too.
Secondary question: is there a way to find my abv now that I missed the OG?
thanks, you guys are helping me tremendously.