Malt and Other Sources of Sugar Flashcards
Explains the role of malt and other sugar sources in beer production. (37 cards)
What are grains?
The seeds of cereal plants.
What is considered the most important grain, from a brewing point of view?
Barley
What are the most commonly used grains for brewing beer?
- Barley
- Wheat
- Maize (corn)
- Oats
- Rye
- Rice
- Sorghum
What are the two basic components found inside the protective husk of a grain?
- The embryo, or baby plant.
- The endosperm, or a storage of energy (in the form of starch).
What conditions are needed for the embryo inside a grain to begin to grow?
Warmth and wetness.
Essentially it needs to feel like spring is here.
Why does the plant store energy inside the grain?
Because the embryo needs an energy source to grow until the plant can produce leaves and create energy through photosynthesis.
What is photosynthesis?
It is a plant’s ability to produce energy from sunlight.
In what form does a plant store food in its grain?
In the form of starch.
This is an effecient way to store sugars.
True or False.
A plant embryo can feed on starch to produce energy directly?
False
It must first convert the starch into sugars, which it can then process into energy.
What is typcially needed to convert starch to sugars?
Enzymes
Enzymes act as catalysts for the conversion of starch to sugar.
What is the process of converting grain into malt called?
Malting
What are the three key steps to malting?
- Steeping
- Germination
- Kilning
What is the most commonly malted grain?
Barley
What does malt refer to?
On its own, it always refers to barley malt.
Other grains, if malted, will have the name of the grain in the description.
What happens when grains are steeped?
They are submerged in water, which causes germination, where the embryo begins to grow and release enzymes.
What happens during germination?
This is where the embryo in the grain begins to grow and produce enzymes to convert starch to simpler sugars.
Why is kilning a key step in the malting process?
It heats and dries the grain out (reduces moisture) and stops the plant from using all of the energy / sugar.
Germination is stopped at this point.
Aside from halting germination, what other effect does kilning have on the grain?
Also produces color and aromas in the malt.
This can have a major impact on the style of beer produced from this malt.
What is the production difference between base malts and other malts?
Base malts are heated to the lowest temperatures in the kilns in order to minimise damage to enzymes, which will be used later to convert starch to sugar during mashing.
What aromas can base malts contribute to a beer?
- Water cracker
- Bread dough
- Bread crumb
- Light honey
What colors can base malts contribute to a beer, if used on their own?
Straw or golden colors.
What is the majority malt type used by most brewers?
Base malts
What is the primary purpose of specialty malts?
To give color and aromas to the final beer.
How are specialty malts used in the production of beer?
In small amounts and in combination with larger portions of base malts.