Vodka and Gin and General Terms Flashcards
Haymans Old Tom Gin
A gin recipe popular in the 18th century England. Known for being sweeter than London Dry Gin, but slightly drier than Dutch Genever.
What is a spirit?
The product of a distillation of a fermented beverage.
At what temperature does ethyl alcohol boil to?
Approx 173 degrees F (78 degress Celsius) at sea level.
What is fractional distillation?
The separation of two liquids with different boiling points.
Who developed the alembic still?
Jābir ibn Hayyān, an eighth-century Arabic chemist-alchemist.
What is an alembic still?
The precursor to the pot still.
What are alternative names to a continuous still?
Coffey, column, patent still
What is the process of a pot still?
Fermented liquor (the wash) is placed into a closed vessel
-heat is applied directly to the vessel
-this vaporizes the ethyl alcohol, water and congeners (volatile molecules, such as esters and other alcohols and aldehydes) which contribute to flavors of a spirit
-vapors travel up through the vessel into a condensing coil
-vapors are cooled and condensed into liquid and collected into a separate vessel
What are congeners?
Volatile molecules such as esters, other alcohols, and aldehydes, which contribute to the flavors of a spirit
What are the foreshots?
The first vapors to condense
-distiller discards these as these contain congeners such as methanol, a toxic alcohol
What are discarded in the distillation process?
The foreshots and the tails.
Why are the tails discarded?
Unwanted congeners tend to collect in the distillate residue.
What is a continuous distillation?
A still with two columns and uses steam, rather than direct heat to vaporize the alcohol.
It tends to create a cleaner, higher alcohol spirit with fewer cogeners.
What are the two columns of the continuous still?
The analyzer and the rectifier.
Where do brown spirits gain color and character?
From aging in oak casks.
How are spirits flavored?
-Many depend on the base fermented material (and oak)
-others flavored with additives by maceration, percolation or infusion
What is maceration?
Steeping a flavoring agent in alcohol at lower temperatures (slow and cold).
What is infusion?
Steeping a flavoring agent in alcohol at higher temperatures (swift and hot).
What is percolation?
-method that resembles coffee brewing
-the base spirit is pumped through the flavoring material
How are lower quality spirits flavored?
-artificial flavors and color additives
How is the alcohol content of a spirit legally required to appear on US and EU labels?
As abv
Until 1980, how did Britain base its legal calculation of the alcoholic strength of liquor on a simple test or proof?
The ability of gunpowder to combust when doused in the spirit
What is American proof?
Twice the percentage of alcohol by volume