Lesson 5 - Wort Cooling and Oxygenation Technology and Process Control SAQ

**You have been tasked with improving wort cooling at your brewery. What would be your six areas of focus? What improvements would you make? 

Response:

For wort cooling, the top six focus areas would be:

1. Control the volume of wort collected.
2. Control the gravity of wort collected.
3. Cool the wort to the required yeast pitching temperature, as per brand specifications.
4. Oxygenate the wort to the specific yeast and brand requirements.
5. Maintain cycle times.
6. Maintain hygiene. 

During wort cooling, our top area of focus would be the accurate control of both wort volume and wort gravity (extract management). This is aside from the numerous quality benefits that go along with this as well.

In terms of quality, we must ensure that the main fermentation inputs are effectively managed and controlled. Thus our next two focus area would be the achievement of brand specifications for both the cooling and the aeration of the wort. We have now covered the main inputs to fermentation: wort, temperature and oxygen.

The next focus area benefits both departments, and the brewery as a whole in terms of productivity. For wort cooling in particular, we know that if we cool quickly, we can better set the wort profile. We can also prevent further chemical reactions occurring, such as colour and flavour reactions. Furthermore, we can assure that hygiene standards are met. Cycle time management has a knock-on effect on quality, as all manufacturing processes work better in a steady state, or what is called ‘normal running’.

Hygiene is of paramount importance and is our last, but certainly not least, area of focus. As we move away from the hot side into the cold side of brewing, we must be particularly vigilant. This is because microbial contamination is much more likely to occur, and is much more pervasive. This can have longer lasting and more damaging effects upon the wort and final beer product.