Wine & Beverage Service Flashcards
7 cards from real CCS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Wine & Beverage Service flashcards as text
What scientific principle explains why cold temperatures slow flavor extraction when steeping tea or coffee?
Answer: Lower temperatures reduce the kinetic energy of molecules, slowing solubility and extraction rates
Molecular kinetic energy decreases at lower temperatures, slowing the dissolution of flavor compounds — this is why cold brew requires many more hours than hot brewing.
In sensory evaluation of wine, what does 'astringency' refer to, and which component causes it?
Answer: A drying, puckering mouthfeel caused by tannins binding to salivary proteins
Tannins, especially in red wines, bind to salivary glycoproteins and precipitate them, reducing lubrication and creating a drying astringent sensation.
Which distillation method is used to produce Cognac and requires double distillation in copper pot stills?
Answer: Charentais distillation
Cognac requires double distillation using traditional Charentais alembic copper pot stills, which preserves aromatic congeners and complexity.
When a wine label states 'estate bottled' in the US, what does this legally guarantee?
Answer: The winery grew the grapes, produced, and bottled the wine on the same estate within the labeled AVA
US TTB regulations require estate-bottled wines to have the winery crush, ferment, age, and bottle the wine from grapes grown on land they own or control within the same AVA.
What is the Maillard reaction's role in coffee roasting, and how does it affect beverage flavor?
Answer: It produces hundreds of brown pigments and complex flavor compounds by reacting amino acids with reducing sugars under heat
The Maillard reaction between amino acids and reducing sugars at roasting temperatures creates the complex roasted, nutty, and chocolatey flavors characteristic of coffee.
In professional bar service, what does 'free pour' mean and what is its primary risk?
Answer: Pouring spirits without a measuring tool, risking inconsistent portion sizes and over-pouring
Free pouring relies on the bartender's speed-pour count rather than a jigger, leading to inconsistent pours that increase cost and affect recipe balance.
Which type of tea undergoes full oxidation during processing, resulting in its characteristic dark color and robust flavor profile?
Answer: Black tea
Black tea is fully oxidized: after withering, the leaves are rolled to break cells, then allowed to oxidize completely before firing, producing theaflavins and thearubigins.