So what determines the capacity of a brewery?
A brewery's capacity is determined by:
- brewhouse capacity (usually equals one batch),
- brewhouse configuration (some brewhouse models enable simultaneous process execution in separate tanks),
- number of fermentation and maturation tanks at disposal,
- technological process.
1) The amount of wort made with one batch
Find out how much wort can be produced with one batch. With each system, it takes approximately 7 to 8 hours to complete a single batch. The design of the brewhouse does not play a significant role in this case, as this is the time it takes to carry out all the processes that occur inside the brewhouse: heating the water, mashing, lautering, adding hops and transferring the wort into the fermentation tank.
Beer needs its time and space to properly and successfully mature.
2) Number of batches in 24 hours
Still, the amount of wort made with one batch does not completely determine the capacity of a brewery. Why?
- You can finish more than one batch per day.
- Some brewhouse designs enable simultaneous process execution in separate tanks, so it is possible to start mashing a new quantity of malt even before the wort has been transferred from the kettle into the fermentation tank (knock-out). Consequently, the total time needed to complete two batches is substantially reduced. So make sure you find out how many batches per day can be made with a brewhouse, if you carry out multiple brewing processes at the same time.
3) Number of fermentation and maturation tanks at disposal
There is a big difference between the capacity of a brewhouse and that of a brewery. A large brewhouse capacity is no use if you do not have a suitable amount of storage units, which is what ultimately determines the brewery's capacity. You can only make as much wort as you are able to transfer into fermentation and maturation tanks.
Beer needs approximately 3 to 4 weeks to mature, depending on the type.
Example of capacity calculation: TIANTAI Brewhouse 500 L
To simplify, we could say that the nominal volume of a brewhouse (batch) equals its monthly capacity.
This would be the case if you only had at your disposal a brewhouse and a single fermentation tank whose volume equaled a single batch, as you have to take into account the fact that beer takes approximately 3 to 4 weeks to mature in the fermenter and you would be able to start a new batch only after emptying it. In this case, you'd be able to brew once per month.
With this configuration, the equipment efficiency is low and the brewhouse is mainly a big expense. If you want to make smaller quantities of beer, you should buy a smaller brewhouse. If, on the other hand, you'd like to make more beer, you will need additional fermentation and maturation tanks, thus a bigger brewery capacity.
TIANTAI Compact brewhouse 500L
Nominal volume: 500 L
Batch: 500 L
batch n°/24 h | max. wort quantity (approx.) | total brew time (approx.) |
1 | 500 L | 7 - 8 h |
2 | 1000 L | 10 h |
3 | 1500 L | 15 h |
4 | 2000 L | 20 h |
Below you will see two examples of a brewery configuration in combination with the TIANTAI 500 brewhouse.
Configuration 1:
TIANTAI Brewhouse 500L
3 x fermenter 1000 L
1 x maturation tank 1000 L
1 x hot water tank 1000 L
1 x cold water tank 1000 L
Estimated brewing plan: 1 brew/week, 2 batches/brew
2 batches of 500 L = 1000 L/week
1000 L x 52 weeks = 52,000 L/year
For this amount of wort, taking into account that the weekly amount of wort produced will remain in the fermenter for approx. 3 weeks, you will need three 1000-L fermenters and one 1000-L maturation tank, as well as water preparation and water storage tanks.
Configuration 2:
TIANTAI Brewhouse 500L
6 x fermenter 1000 L
2 x maturation tank 1000 L
1 x hot water tank 1000 L
1 x cold water tank 1000 L
Estimated brewing plan: 2 brews/week, 2 batches/brew
4 batches of 500L = 2000 L/week
2000 L x 52 weeks = 104,000 L/year
For this amount of wort, taking into account that the weekly amount of wort produced will remain in the fermenter for approx. 3 weeks, you will need six 1000-L fermenters and two 1000-L maturation tanks, as well as water preparation and water storage tanks.
Hope this is useful for your brewery project. If you need any help, please feel free to contact with TIANTAI Beer Equipment. As a professional beer brewing system manufacturer, we have rich experiences to help you build your own brewery/brewpub/taproom. Welcome your proposal!
Edited By Daisy Cai
Email: [email protected]
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