Wine Making Mast Guide Flashcards
What is pentoses
Unfermentable sugars found in grape juice
Main fermentable sugars
Glucose and Fructose
4 scales used for measuring fermenting grape musts
Brix Baume Oeschle KWV Babo
Must Weight Conversions
Potential % ABV= gl glucose and fructose/16.83
Wines harvested later in the season and with botrytis usually have more glucose or fructose
Fructose
What is the tool to measure sugar in the field?
Refractometer
Where do you see the KMW or Babo scale used?
Austria, Italy and Eastern Europe
Baume is converted to Brix by multiplying by what?
1.8x
Where do you find the oeschle scale used?
Germany and Switzerland it I mathematically related to specific gravity
What is the primary acid that occurs in grapes
Tartaric, others are Malic and citric
What three acids are formed during fermentation
Lactic, succinct and acetic
What two parameters are used to measure acidity in wine
pH and TA (titratable acidity)
TA effects what?
Sourness
pH effects what?
Texture
Win generally has a pH between what
3-4
