Beer Filtration Flashcards
1
Q
Define filtration
A
Any device that uses a medium to remove impurities or a substance
2
Q
List 4 mechanisms of filtration
A
Direct Interception Intertial Impaction Diffusional Interception Adsorption Bridging
3
Q
What are the advantages of surface filters
A
Absolute (can dial in micron count)
Versatile (can set to numerous specifications)
Easy to use
Low solids capacity
4
Q
Advantages of depth filters
A
High void volume, hi throughput
Can be regenerated
Handles high solids loading
Needs a filteraids
5
Q
Why is Diatomaceous Earth used as a filteraid?
A
Most economic operation; most throughput while maintaining acceptable clarity
6
Q
What is the purpose of pre-coating in a DE filter?
A
To provide immediate clarity
Set a filter bed
Facilitate cleaning of the filter screen ant the end of filter cycle
7
Q
What brewing process measures may be used to aid beer filtration?
A
Use well modified malts Higher adjunct ratios Enzyme addition to mash mixer Control of mash/sparge pH Complete conversion in mash Vigorous kettle boil / good hot break
