1. Spirit Production and the Sensory Evaluation of Spirits Flashcards
Specific type of alcohol in alcoholic beverages
Ethanol (Ethyl Alcohol)
The conversion of starch into fermentable sugars
Saccharification
Boiling point of water
212 F / 100 C
Boiling point of pure ethanol
173 F / 78 C
Highest level of abv generally achieved via commercial distillation
96.5%
Compounds responsible for many distinct aromas and flavors in spirits
Congeners
2 terms for the first portion of the distillate to come off the still
Heads, Foreshots
2 terms for the last portion of the distillate to come off the still
Tails, Feints
Term used for the center part of the distillate
Heart (Potable Spirit)
Type of still that works in the batch process
Pot still
Technique used in distillation to control which elements of the liquid are passed on to the condenser
Reflux
2 alternate terms used for “column still”
Coffey still, Patent still
Pipe connecting the plates in a column still
Downcomer pipe
Alternate term for a pot-and-column still
Hybrid still
Botanical term for American white oak
Quercus alba
Term used for all newly distilled spirits
New make spirits
3 main structural components of oak heartwood
Cellulose, Hemicellulose, Lignin
Charred layer just below the surface of a toasted oak barrel
Red layer
Six processes of oak aging
Extraction, Evaporation, Oxidation, Concentration, Filtration, Coloration
Term used for evaporative loss that occurs during oak aging
The angel’s share
Three characteristics of an ideal spirits tasting glass
Tulip-shaped, Stemmed, Thin, clear glass
Ideal pouring order for spirits in a tasting flight
By abv - lowest to highest AND/OR
By age - youngest to oldest
The edge of a liquid in the glass
Meniscus
The color of a finished product may be affected by these three processes:
Wood aging, Caramel coloring, Natural/artificial colorings
Color of most new-make spirits
Clear, or water-white
Term used for a cloudy or hazy appearance
Turbidity
Effect where spirits turn cloudy when mixed with water
Louche, or the louche effect
Two-step process for “nosing” spirits
First - take quick sniffs before swirling the glass
—> Second - “roll” the glass and note the differences
9 categories of spirit aromas
Grain - Fruity - Floral - Botanical - Sugar - Spice - Oak/Wood - Nutty - Rancio
7 characteristics to note during the “in-mouth impressions” stage of spirit evaluation
Sweetness - Acidity - Bitterness - Alcohol - Body - Flavors - Flavor Intensity
Effects of diluting a spirit during sensory evaluation
Allows the aroma to blossom
- Reduces alcohol strength, which allows background flavors to come forward
Two aspects of a spirits “finish”
Length
- Aftertaste
Three aspects of a spirit to be noted during the “overall impressions” stage of spirit evaluation
Complexity
- Quality
- Maturity
- (Other good answers - whether or not it is pleasant, what is it about this spirit that is enjoyable, how best can the spirit be enjoyed)