Wort Cooling and Oxygenation Objectives Flashcards
(12 cards)
What is the main objective of wort cooling and oxygenation?
To prepare the wort for yeast pitching and begin fermentation consistently and reliably.
What was the role of the previous stage of wort clarification?
To prepare the clarity and stability of the wort, making it ready for yeast and avoiding trub particulate matter.
What additional inputs are needed for fermentation after wort clarification?
Temperature and oxygen.
What does yeast require for growth during fermentation?
Attemperated food (wort) and oxygen.
List the objectives of wort cooling and oxygenation.
- Collect the required volume of wort
- Achieve target temperature
- Achieve target original gravity
- Achieve target oxygenation level
- Minimise time taken
- Minimise waste
- Minimise energy use
- Recover heat from wort
- Precipitate cold break
- Prevent infection
Why is the cooling of wort critical in the brewing process?
To optimise cycle times and reduce rates of chemical reactions associated with wort boiling.
What happens to the wort as it cools?
It becomes hazy as the cold break forms.
What can brewers choose to do with the cold break formed during cooling?
Remove it or not, depending on brand requirements.
What is done with oxygen after wort cooling?
It is added for the yeast to use for growth.
What do most modern and large-scale breweries do with the heat from cooled wort?
Recapture the heat.
True or False: Wort cooling and oxygenation is the interface between the brewhouse and fermentation departments.
True.
Fill in the blank: Wort cooling must be achieved as quickly as possible to stop or reduce the rates of all ______ associated with wort boiling.
chemical reactions.
