Yesterday I made chifir', Russian prison tea. It's basically a fistful of looseleaf tea, tossed in boiling water, then boiled for 10-15 minutes. It is basically klatchian coffee and probably lethal to most people.
@DialMforMara I didn't need another cup of coffee for almost 6 hours afterwards.
@Pookleblinky Wow. That could lead to dangerous levels of productivity.