Used to be able to get snapple iced tea in jail here in the 90s from commissaryNot where I was, but guys were very creative at brewing their own beer with ingredients "borrowed" from the kitchen (fruit juice, rice, sugar, yeast, etc.). Milk came in 5-gallon cardboard boxes with a plastic bladder inside which could be cleaned and used for brewing. The spigot has to be on top and open, because the yeast creates a lot of pressure. One bag blew up where it was hidden on top of a dropped ceiling.
