Colloidal Stability Flashcards
1
Q
Define colloidal stability
A
Two macro particles that combine and form a single particle that is visible to the eye. (Tannin + Protein)
2
Q
What are the components of beer haze?
A
Tannins + Proteins = (polyphenols)
3
Q
What are 3 negative factors that may promote haze formation in beer?
A
O2
Agitation
Metal ions
4
Q
3 common modern chillproofing methods
A
PVPP (denatures tannins)
Silica gel
Tannic Acid
Bentonite Clay (all denature proteins)
5
Q
What do chill proofing treatments attempt to change in beer?
A
The production of polyphenols
