A fermentation vessel is specifically a container used to hold the wort during the fermentation process. This is when yeast is added to the wort, allowing it to convert the sugars into alcohol and carbon dioxide. The design of a fermentation vessel can vary widely, with options including open-top fermenters, closed fermentation tanks, and conical fermenters. Each type is typically engineered to facilitate the fermentation process by allowing for gas release while preventing contamination.
In contrast, other options provided do not accurately define fermentation vessels. A vessel for fermenting spirits refers specifically to distillation, while a storage tank for aging beer is designated for maturation after fermentation has taken place. Finally, a device to cool the wort quickly relates to the cooling stage post-boil, which is crucial prior to fermentation but does not represent the fermentation vessel itself.