Please don ' t resort to low effort and offtopic comments rule 3 . <| sep |> Haha , this was great . So , I work in a prison and have had inmates from various institutions teach me of all the pruno making methods . You basically blended 2 . The most common method is crushed fruit with any other sweet sugary substance , water , etc the other very rare method is to make a liquid out of ketchup and water then ferment just that , it apparently tastes sort of like a bloody Mary . Also , at least in the state of California , inmates don ' t have access to sugar in any form . Soda and fruit are about as close as it gets , so they either have to rely on friends who work in the chow hall to steal some sugar for them , or they make the pruno without it . As for yeast , every prison brewer hehe I know creates what they call a kicker out of a raw piece of bread dough they got from a friend who works in the chow all . This kicker is equivalent to our yeast starters , they basically build it up in a small amount of juice before pitching it into the larger batch . Finally , inmates don ' t use baggies , at least that I ' m aware of rather , they use the smaller trash bags that fit in desk trash bins , double bagged , the inner one with a loose not to keep bugs out , and the outer one folded in on top for added protection . The brewer or whatever they call themselves burps the baby 13 times per day , and when they forget , the whole fucking unit knows . it smells horrendous . Relevant side storyI was working with this dude about 3 years ago , history of substance dependence , but verbalized his commitment to staying clean while in prison . So a roommate of his was getting ready to parole and the room threw him a going away party where they apparently had 6 soda bottles full of pruno made by one of the better pruno makers . This dude , who I trust had ' t had anything to drink in the year or so he ' d been down , jokingly says he can pound a whole bottle of the stuff without having an issue . The guys , being guys , challenge him to do it , so he does . I ' m pretty cool as a prison psychologist to the extent that I see no value in breaking my patients trust by telling on them , which has led to them trusting me with this type of information . One of this guy ' s other roommates 4 per cell comes down to my office to tell me , Man , G isn ' t doing too well . I mentioned I talked to him earlier that morning and he seemed fine . His roommate chuckles and says , That was before he inhaled a bottle of pruno . I went up to his cell to check things out and found him face down on his bed , a small pile of bark surrounding him , he was crying and doing that thing I think most of can relate with Ughhhhhhhh , I don ' t know what I was thinking , I ' m never drinking again . Anyway , I convinced his roommates to help get him in the shower and clean his stuff up for him , he ended up sleeping it off most of the day then , the next morning , came down and spent a good hour telling me how ashamed he was . Yep , pruno can fuck you up