[2] Naturally occurring ptyalin enzymes in the maker's saliva catalyse the breakdown of starch in the maize into maltose.
This process of chewing grains or other starches was used in the production of alcoholic beverages in pre-modern cultures around the world, including, for example, some traditional forms of sake in Japan.
Only in a small number of towns and villages in Bolivia,[4] Peru, Ecuador, Colombia, and in Costa Rica, is it still prepared.
Normally sold in 'chicherias' consisting of an unused room or a corner of the patio of a home, these generally unlicensed businesses can provide a significant boost to a family's income.
They are generally identified by a bamboo pole sticking out the open door, adorned with (often red) flags, flowers, ribbons or colored plastic bags.