Pruno

Pruno is a type of alcohol that is made by mixing fruit, sugar, and sometimes bread with water and leaving it to ferment, which means the mixture sits for a while and starts to make bubbles and change into a new substance.

But here's the thing, ELI5: Imagine you have a magical recipe that turns fruit and bread into a special drink. You put the fruit and bread in a container with water and some sugar, and then you let it sit in a warm place for a few days or even weeks. As time passes, the mixture starts to bubble and change. Eventually, it becomes a special kind of alcohol that people in prison and other restricted environments make to get drunk.

Pruno can be dangerous to make because it's often made in places where the ingredients and tools are limited, and it's not always possible to keep the mixture clean and safe. It can also be unsafe to drink if it's not made correctly because it can contain harmful bacteria or other substances that can make you sick. It's also illegal in most places to make or possess pruno, so it's not something you should try at home.