brewing

oluenpano, pano, oluen valmistus (present participle of)
The production of alcoholic beverages, such as beer, by fermentation; the process of being brewed.
The business or occupation of a brewer.
The quantity of a brew made in a single batch.
1824, Encyclopaedia Britannica

The four last brewings, in which the quantity of yeast added was smaller than in the six first, took place during the month of May, when the heat is apt to make the fermentation run to excess.