Beer Flashcards
(135 cards)
How is beer produced?
By the brewing and fermentation of starches, mainly derived from cereal grains – most commonly malted barley, though wheat, maize, rice, and oats are also used.
What happens during the brewing process?
Fermentation of the starch sugars in the wort produces ethanol and carbonation in the resulting beer.
What is most modern beer brewed with?
Hops! Which are flowers that add flavor and bitterness/also have both preservative and antiseptic qualities that prohibit bacterial growth.
What other flavoring agents can be used instead of hops?
Gruit, herbs, or fruits.
What is Amylase?
An enzyme that is produced when barley is malted. It converts starchy carbohydrates from grain into fermentable sugar.
What are the two enzymes that are produced by malting barley?
Diastase and Amylase.
What is an Ale Beer?
Beer distinguished by the use of top fermenting yeasts. (Saccharomyces Cerevisiae) Top fermenting yeast performs at warmer temperatures. Byproducts are more evident in taste, aroma and fruitiness.
What is a Black & Tan?
A mix of light and dark beer. (Ex: Stout or Porter and Lager or Pilsner)
What is wort?
A sugar-rich liquid from malted grain (turning the starch into fermentable sugar).
What is Green Malt?
Grain softened by steeping in water and allowed to germinate but not yet subjected to drying.
What is sparging?
Rinsing the spent grains in water to get additional sugar and flavor for the beer. It will also extract more bitterness.
What is Reinheitsgebot?
The Beer Purity Law (1516).
Codified the three ingredients allowed for beer production to be barley, hops and water.
What are the two different beer yeasts that set ales and pilsners apart?
- Saccharomyces Cerevisiae - Top fermenting yeast for Ales
- Saccharomyces Pastorainus - Bottom fermenting yeasts for Lagers
What is Gueze?
A style of mixing one-year-old lambic beers with beers that have aged for two to three years.
What style of yeasts are used for Lambic beers?
Brettanomyces Bruxellensis and Brettanomyces Lambicus
How does the act of drying the malted barley impact the style of beer?
The length and degree of roasting will affect the character of the malt - heavy roasting for porters and light toasting for pale ales.
What is Grist?
Germinated barley before drying. The product of grinding or cracking the roasted malt.
What is a copper?
A brew kettle/a vessel for boiling the wort.
How long is the wort boiled for? Why?
At least for one hour in order to stabilize, sterilize, darken the color and evaporate excess water.
Latin term for bottom fermenting yeasts?
Saccharomyces Pastorianus
Latin term for top fermenting yeasts?
Saccharomyces Cerevisiae
Top and bottom fermenting yeast are used for what two styles of beer?
Top fermenting yeast for ALES.
Bottom fermenting yeasts for LAGERS.
What are Lambic beers?
A specialty of Belgium. They are spontaneously fermented in open top containers with wild yeast and then aged in cask for at least three years.
What is a Kriek?
Fruit lambic beers.