IMPBW103 – Control wort boiling in brewing

Overview 

This standard is about the skills and knowledge needed for you to control wort boiling in brewing.

This standard details the skills and understanding needed when applying heat to bring about a change in the condition of a product. It details the skills required to start up, run and shut down equipment, as well as being able to take the appropriate action should operating problems occur. It is also about working to product specifications and production schedules. Complying with and understanding health and safety, food safety and organisational requirements are essential features of this standard.

This standard also covers understanding the principles of the wort boiling process in brewing including sterilisation, stabilisation of enzyme action, evaporation, coagulation and precipitation of protein (trub formation) and beer haze precursors, flavour development other than hop bitterness and colour formation, and how the control of different factors can affect the wort. It covers what happens during the boiling process, the characteristics of hops, hop bitterness formation and values, the use of other raw materials, process aid additions and the operating principles of wort kettles (coppers).

This standard is for you if you require a broad knowledge and understanding of the wort boiling process and related activity in brewing.

 

Performance criteria

You must be able to:

 

Prepare for heat treatment

1.         prepare for heat treatment in accordance with the legal or regulatory requirements, the organisational health and safety, hygiene and environmental standards and instructions 

2.         check product specifications at the right time

3.         set up equipment according to specification

4.         check that material for heat treatment is available and fit for use

5.         check that services meet requirements

6.         start up the plant and check that it is running to specification

7.         take effective action in response to operating problems

8.         maintain effective communication

 

Carry out heat treatment

9.         carry out heat treatment in accordance with the legal or regulatory requirements, the organisational health and safety, hygiene and environmental standards and instructions 

10.       use equipment and check that it is supplied with materials and services

11.       achieve the required output to the correct specification

12.       check the product is transferred to the next stage in the manufacturing operation

13.       take effective action in response to operating problems within the limits of your responsibility

14.       maintain effective communication

 

Finish heat treatment

15.       finish heat treatment in accordance with the legal or regulatory requirements, the organisational health and safety, hygiene and environmental standards and instructions 

16.       check the specifications to time shut down accurately

17.       follow procedures to shut down equipment

18.       deal with items that can be re-cycled or reworked

19.       dispose of waste in accordance with organisational requirements

20.       make equipment ready for future use after completion of the process

21.       maintain effective communication

22.       complete all necessary documentation

 

Knowledge and understanding

You need to know and understand

 

1.         the purposes of boiling

2.         what factors affect the effectiveness of wort boiling

3.         what the purposes of adding liquid adjunct to the wort kettle are

4.         the purpose and function of copper fining

5.         what the nature and origins of hops and hop preparations are

6.         the principles of isomerisation and how hops or hop preparations yield bitterness during wort boiling

7.         how alternative or supplementary additions of hop bitterness are made at later stages in the process

8.         how bitterness value of beer is expressed and what typical values are

9.         what the bitterness potential of hops are

10.       how required hop rate/hop throw/hop addition is calculated to achieve a given bitterness

11.       what the principles of hop utilisation are

12.       what other raw materials are used in wort boiling and their function

13.       the operating principles of wort kettles (coppers)

 

Keywords: Food; drink; manufacturing; brewing; wort; hops; coagulation; precipitation; boiling