Clarification & Stabilisation Flashcards
What are 3 steps for clarification?
- Sedimentation
- Fining
- Filtration
What is sedimentation?
Rack off gross lees
What can be used to speed up sedimentation?
Centrifuge
What type of wines might not have sedimentation?
Premium red wines
What is used in fining to generate clumps?
Fining agent
What process removes the clumps generated in fining?
Filtration
What are 3 types of filtration?
- Depth
- Surface
- Sterile
What is used to trap solids/gross less in depth filtration?
Thick layer of material
Why is surface filtration expensive?
The fine sieves clog up
What is sterile filtration?
Removal of yeast & bacteria via vvv fine sieves
What are 2 types of stabilisation?
- Tartrate
2. Microbiological
What is done to the wine to form tartrate crystals?
Chill to 0c
How are tartrate crystals removed?
Filtrations
What is added to the wine to remove microbiological risks?
So2
What 2 types of wine aren’t at risk from microbological issues?
High alcohol
MLF
