<human>: I have a question about the history of the word'mash'.
<bot>: Mashing is the process of making beer. In the early days of brewing, the grain was ground up into a powder and mixed with water. This mixture was then heated and boiled to make a thick liquid called wort. The wort was then cooled and transferred to a fermentation tank where yeast was added. The yeast converted the sugars in the wort into alcohol and carbon dioxide. Finally, the beer was filtered and bottled or kegged for sale.