Here in the U.S., malt leftover from brewing tends to go to animal feed or barley milk, dog biscuits or compost but a Japanese company, Kitafuku has another upcycled use for malt, “craft beer paper,” paper products that can be used in beer promotion such as tickets, menus, coasters and drink holders.
This is a brilliant loop for a brewery. Order a beer from a menu made from the previous batch of the same beer you are drinking now.