The unitank is also a fermenter, Unitank is great for fermentation and aging because its shape creates space for yeast to accumulate at the bottom for water filtration.
Benefits of using unitank
Simplicity: Ability to combine fermentation and aging steps, simplifying the brewing process by removing one step. Because of this, breweries can purchase less equipment, saving the brewery money and space. Of course, it also saves time and labor for workers, who don’t need to move beer from one point to another and can also dispense beer directly from the unitank.
Reduced risk of contamination: Every time beer is removed from the fermenter, it is exposed to air, which leads to dissolved oxygen. This can cause some problems if you plan to pack and distribute beer outside the pub. In addition, beer may be exposed to other contaminants such as microorganisms, and while these organisms are not lethal, they can cause some unpleasant odors. Using unitank reduces this risk of contamination.
The body of the Bright tank is also cylindrical, but it has a flat bottom. It’s technically okay to ferment in a bright tank, but its shape makes filtration of the yeast a problem. Because of this, it is usually only used for aging and maturation, and where the beer is stored before it is packaged or served.
Benefits of using a bright tank
The larger volume of beer production: Some breweries brew very large volumes of beer, and brewing and packaging are two separate processes. In this case, fermenting the beer and serving the beer needs to take place in two separate areas in the brewery, which also makes the use of unitank impractical. The brewery needs to remove the beer from the fermenter and put it into the bright tank. It makes it easier to pack beer and free up fermentation tanks for the next batch, allowing the brewery to produce more beer.
Improve clarity: Bright beer tanks are called “bright” because the beer they produce is crystal clear. When the beer enters the bright tank from the fermenter, the yeast is first filtered out. This extra layer of filtration produces a clearer beer, which some breweries prefer, before further maturation and carbonation.